Preparation Material for PPSC FPSC NTS PTS OTS

Solved MCQs of General knowledge for PPSC FPSC NTS PTS OTS

Everyday Science Questions

  1.  Spleen is called the graveyard of Red Blood Cells.
  2.  Oxgen Gas was discovered by Priestly.
  3.  Dr. James Waston discovered the structure of DNA in 1953.
  4.  Cell for the first time was discovered by Robert Hook.
  5.  “Debugging” is the process of locating and fixing or bypassing bug s (errors) in computer program code or the engineering of a hardware device.
  6.  ‘Claustrophobia” is defined as the fear of enclosed spaces.
  7.  “Brass” is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.
  8.  “Bronze” is a metal alloy consisting primarily of copper, usually with tin as the main additive.
  9.  Vitamin C (also callead Ascorbic Acid) is a powerful antioxidant, and aids in the production of collagen, and stimulates the immune system. Vitamin C is essential for appetite.
  10.  “Soda Water” serves as a primary remedy for upset stomach.
  11.  Normal arterial blood pH is 7.40, with a range of about 7.36-7.44. Blood pH depends on carbon dioxide (CO2) concentration and bicarbonate (HCO3) concentration.
  12.  The main constituent of Sui Gas is Methane.
  13.  Agoraphobia is the fear of open or public places. “Agraphia” is the inability to write. Acrophobia is the fear of heights. Aerophobia is a fear of flying, Apiphobia is a fear of what? Bees. Cyberphobia is the fear of computers or working on a computer.
  14.  and acrophobia a fear of Heights.
  15.  A CPU( cache) is a cache used by the central processing unit of a computer to reduce the average time to access memory. The cache is a smaller, faster memory which stores copies of the data from the most frequently used main memory locations.
  16.  “Dry ice” is a Solid Carbon Dioxide.
  17.  Chemically diamond is a Pure Carbon.
  18.  Gas is use in Fire Cylinders CO2.(CO2 is use for extinguishing fire)
  19.  Sulphuric Acid is use in the car batteries.
  20.  ‘Parkinson’ is adisease of Brain.
  21.  The normal pulse beat of a human body is between 72—80.
  22.  An instrument designed for testing the purity of milk is called Lactometer.
  23.  “Autopsy” is the Post-Mortem examination of a body.
  24.  “Lexicography” is the branch of science which deals with the process of writing dictionaries.
  25.  Speed of Sound in Air 331 m/s.
  26.  Red Colour has largest and Blue colour has shortest Wavelength.
  27.  “Pomology” is the study and cultivation of fruit.
  28.  Logarithm tables were invented by John Napier
  29.  Fish is the Best source of protein.
  30.  Most commonly used bleaching agent is chlorine
  31.  The chief constituent of gobar gas is methane.
  32.  The frequency of which of the following is the highest? Radio waves
  33.  “Charles Drew” was the first pioneered the idea of a blood bank.
  34.  Kidneys organ of the body purifies the blood.
  35.  Skin is highly affected by the nuclear radiation first.
  36.  Radio waves travel with almost the velocity of Light.
  37.  Diamond is the hardest mineral.
  38.  Life history of human malaria parasite in Anopheles was first described by Ronald Ross
  39.  The distance between the earth and the sun is smallest in the month of January.
  40.  Green vegetables are a good source of Minerals and Vitamins.
  41.  One metric ton is equal to 1000 kg, or 2204 pounds.
  42.  One square foot is equal to144 sq inches and 1 meter is equal to 3.28 foot.One nautical mile is equal to 6080.
  43.  “Monometer” is an instrument for measuring Gaseous Pressure.
  44.  Atmospheric pressure at sea level is 760 mm
  45.  The acceleration caused by gravity per second is 32 feet.
  46.  1 Inch is equal to 2.54 centimeters.
  47.  Silicon is called the “Earth maker”.
  48.  When a disease occurs over a large area of earth’s surface at one time, it is called Epidemic disease.
  49.  The area between the Tropic of Cancer and the Trpic of Capricorn, where the sun is vertically overhead at some point of the year is called The Torrid zone.
  50.  Deficiency of Vitamin C causes Scurvy.
  51.  What does Angstrom measure? Speed of ships
  52.  The scientist who first discovered that the earth revolves round the sun was Copernicus.
  53.  “Digital Computer” was invented by Howard Alken.
  54.  Wood is the least conducter of electricity.
  55.  “Cryptography” deals with the study of secret writing.
  56.  What is laughing gas? Nitrous Oxide
  57.  The element common to all acids is Hydrogen.
  58.  Diamond is an allotropic form of Carbon.
  59.  Earth revolves around the sun from? West to east
  60.  Philately is the science of stamp collection.
  61.  Hydrometer is used for specific gravity of liquid.
  62.  Which vitamin easily prepared in body? vitamin D
  63.  Which gas is commonly used in balloons? Helium
  64.  The most abundant element in earth curst is Oxygen (O) 46.6% and silican is the second abudent element of earth and silican is called earth maker.
  65.  One horse power is equal to 746 watt.
  66.  Which colour phosphorus used in matches? Red
  67.  Oldest known element? Copper
  68.  Which shape of carbon is used in lead pencils? Graphite
  69.  Artificial silk is called rayon.
  70.  Basic component of paper is wood.
  71.  The bar is a unit of pressure equal to 100 kilopascals and roughly equal to the atmospheric pressure on Earth at sea level.
  72.  Light year is the unit of distance.It is the distance that light can travel in one year. A light year is equal to 9.46 trillion kilometers.
  73.  Largest organ of the body is Skin and largest gland is Liver.
  74.  Kidney disease due to overdose of vitamin c.
  75.  CPU is an abbreviation of Central Processing Unit.
  76.  Cusec is unit of water flow.
  77.  ATM stands for Automated Teller Machine.
  78.  Mirage is an example of refraction of Light.
  79.  Sound travels fastest in Glass.
  80.  The gravitational force on the body is called as Weight.
  81.  Most astronomers believe that origin of the Universe is Big Bang Theory.
  82.  Hepatitis and jaundice are the diseases of Liver.
  83.  Neon gas is used in decoration lighting.
  84.  Creature having both male and female organs is known as Hermaphrodite.
  85.  A low area storm with high winds rotating about a center of low atmospheric pressure is called Cyclone.
  86.  The first Muslim scientist who presented the law of reflection and refraction isIbn-ul-Haitham.
  87.  The difference in the duration of day and night increases as one move from Equator to poles.
  88.  Solar system was discovered by Nicolaus Copernicus.
  89.  RAM stands for Random Access Memory.
  90.  Richest source of Vitamin D is cod liver oil.
  91.  1sq cm is equal to how many square mm? 100
  92.  1 milligram gold is equal to how many milligrams? 1000
  93.  We are saved from ultraviolet rays of sun through? Ozone Layer
  94.  Vitamin K helps in blood clotting.
  95.  Iron metabolism in the human body is helpful for Haemoglobin and blood is red due to hemoglobin.
  96.  In how many groups the living organisms that have back bone, are divided? 5 groups
  97.  Vitamins C not stored in human body and lack of vitamin c create skin disease.
  98.  Art and science of growing flowers, fruit and vegetables is called Horticulture.
  99.  What did Sir Isaac Pitman invent? A form of shorthand
  100.  “Dactyliography” is the study of finger prints.
  101.  “Etymology” is the study of origin and history of words.
  102.  “Plague” is a disease, which spreads by rat.
  103.  “Choreography” is the art of designing sequences of movements in which motion, form, or both are specified. Choreography may also refer to the design itself, which is sometimes expressed by means of dance notation.
  104.  Newton discovered that every applied force has an equal reaction.
  105.  When heavy unstable elements split into relatively smaller elements along with the release of energy is called fission.
  106.  Protein is present in the highest amount in a human body.
  107.  ‘Bicycle’ was invented by Macmillan
  108.  “Amino Acid” is the smallest unit of Protein.
  109.  How many pairs of ribs are there in the human body? 12.
  110.  A cataract is a clouding that develops in the crystalline lens of the eye or in its envelope (lens capsule), varying in degree from slight to complete opacity and obstructing the passage of light.
  111.  Ice melting at poles is because of Ozone depletion. Afforestation stands for planting of new Trees.
  112.  “Marie Curie” was a physicist and chemist famous for her pioneering research on radioactivity. She was the first person honored with two Nobel Prizes—in physics and chemistry.
  113.  On boiling egg hardens which indicates the presence of Protein.
  114.  Abusive drugs damage cells of Brain.
  115.  In modern television Cathode Ray Tube is replaced with Transistor.
  116.  Acupuncture is a type of alternative medicine that treats patients by insertion and manipulation of solid, generally thin needles in the body.this medical treatment was found in China.
  117.  “Stainless Steel” contains chromium, Iron and corban.
  118.  Red blood cells have no nucleus
  119.  Pain in ears when aeroplane goes down because of High Air pressure.
  120.  The maximum limit of sound beyond which a person can become deaf is 129 db.
  121.  Natural gas effect on our lungs because, it is harmful for human being. When ever we inhale carbon monoxide its poisonous and human body feeling illness. Its very dangrous when ever natural gas leak some where repair or block this leakage its very harmfull for human body and childrens as well.
  122.  The tiny air sacs in the lungs tissues are called Aliveoli.
  123.  The quantity of charge that is stored in a condenser is measured in Coulombs and SI unit of pressure is Pascal.
  124.  The deficiency of Viamin E causes sterility in men and women.
  125.  A xerophyte or xerophytic organism is a plant that has adapted to survive in an environment that lacks water, such as a desert.
  126.  A halophyte is a plant that grows where it is affected by salinity in the root area or by salt spray, such as in saline semi-deserts, mangrove swamps, marshes and sloughs, and seashores.
  127.  An epiphyte is a plant that normally grows on another plant for support. It is not parasitic, but uses the host plant for support only.
  128.  Anthophobia is the fear of flower. Xenophobia is the dislike or fear of people from other countries.
  129.  Photophobia is the extreme sensitivity to light.
  130.  “Herpes” is a disease caused by a herpes virus, affecting the skin or the nervous system.
  131.  “Erythrocyte” is a red blood cell ( typically a biconcave disc without a nucleus) that contains the pigment hemoglobin and transports oxygen and carbindioxide to and from the tissues.
  132.  “Leucocyte” is a colourless cell which circulates in the blood and body fluids and is involved in counter acting foreign substances and disease ; a white blood cell.
  133.  “Isobar” a line on a map connecting points having the same atmospheric pressure.
  134.  “Pneumonia” is a lung infection in which the air-sacs fill with pus.
  135.  “Leprosy” is a contagious bacterial disease that affects the skin, mucous membranes and nerves, causing discoloration and humps on the skin and, in severe cases, disfigurement and deformities.
  136.  “Lithophytes” are a type of plant that grows in or on rocks. Lithophytes feed off moss, nutrients in rain water, litter, and even their own dead tissue.
  137.  Gunpowder is a mixture of sulphur, charcoal and potassium nitrate (nitre). When water is added to the mixture potassium nitrate dissolves.
  138.  A black hole is a region of spacetime from which nothing, not even light, can escape.
  139.  Rabies (Hydrophobia) is a disease recognized by Insane Dog biting. It effect on the Central Nervous system.
  140.  Pneumonia affects the respiratory system.
  141.  “Cooking gas” is a mixture of Butane and Propane.
  142.  Iron articles rust because of the formation of a mixture of ferrous and ferric hydroxide.
  143.  “Chlorination” is the process of adding the element chlorine to water as a method of water purification to make it fit for human consumption as drinking water.
  144.  Sulphur is mixed with the rubber to make it more flexible.
  145.  Dysentery is an intestinal inflammation, especially in the colon, that can lead to severe diarrhea with mucus or blood in the feces.
  146.  Vibrio cholerae is a Gram-negative, comma-shaped bacterium. Some strains of V. cholerae cause the disease cholera.
  147.  “Thanatophobia” is an extreme and irrational fear of death.
  148.  “Psoriasis” is a common skin condition that causes skin redness and irritation.
  149.  “Hippocratic Oath” is an oath historically taken by physicians and other healthcare professionals swearing to practise medicine ethically. It is widely believed to have been written by Hippocrates, often regarded as the father of western medicine, or by one of his students.
  150.  Microphone is used to convert sound waves into electrical energy.
  151.  Penicillin is widely used as an antibiotic
  152.  The air we inhale is mixture of gases. Which of the following gases in the mixture is highest in percentage? Nitrogen
  153.  The average thickness of the earth’s crust is 32km.
  154.  The substances human body produces to fight against disease germs are called Antibodies.
  155.  The distance of place south or north of Equator is called Latitude.
  156.  “Aboriculture” is a science of the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants.
  157.  “Vitamin E” is present in egg.
  158.  “Y2K” is a computer problem.
  159.  Which of the following animals can hear ultrasonic sound? Bat
  160.  SIM stands for Subscriber identity Module.
  161.  The energy generation in stars is due to Fusion of light nuclei.
  162.  Martin Cooper is known for his invention of Mobile Phone.
  163.  The law of floating bodies was discovered by greek scientist Archimedes.
  164.  First human heart transplant operation conducted by Dr. Christian Bernard on Louis Washkansky, was conducted in 1967
  165.  Exposure to sunlight helps a person improve his health because the ultraviolet rays convert skin oil into Vitamin D
  166.  The ozone layer restricts Ultraviolet radiation
  167.  Eugenics is the study of altering human beings by changing their genetic components
  168.  Ecology deals with Relation between organisms and their environment.
  169.  Filaria is caused by Mosquito.
  170.  If speed of rotation of the earth increases, weight of the body decreases
  171.  Fathometer is used to measure Ocean depth
  172.  Gabriel Daniel Fahrenheit was a German Physicist ; developed the mercury thermometer in 1714 ; devised temperature scale
  173.  Who discovered penicillin? Alexander Fleming.
  174.  “Entymology” is the study of Insects.
  175.  In Algebra and mathematics who is credited with the originating the Binomial Theorem by Omar-i-Khayyam.
  176.  Nitrogen gas is used in electric bulb.
  177.  One US barrel is equal to 159 litres.
  178.  Quicklime is an alkaline powder obtained by strongly heating which other material? Chalk.
  179.  What is the name of the milky fluid obtained from trees which is used to produce rubber? Latex.
  180.  Which is the only mammal with the power of active flight? Bat.
  181.  Which lower level of clouds are commonly called ‘rain clouds’? Nimbus.
  182.  Which medical specialty is concerned with the problems and illnesses of children? Pediatrics.
  183.  What name is given to the stiffening of the body after death? Rigor mortis.
  184.  The name of which Roman god means ‘shining father’ in Latin? Jupiter.
  185.  What is the central colour of a rainbow? Green.
  186.  What part of the body consists of the duodenum, the jejunum and the ileum? Small intestine.
  187.  What, in internet terminology, does SMTP stand for? Simple Mail Transfer Protocol.
  188.  What, in internet terminology, does FTP stand for? File Transfer Protocol.
  189.  What is the art of preparing, stuffing and mounting the skins of animals to make lifelike models called? Taxidermy.
  190.  What is the technical name for abnormally high blood presure? Hypertension.
  191.  What part of eye is responsible for its color? The iris.
  192.  What is the second planet from the sun? Venus.
  193.  Which gas used in advertising signs has the symbol Ne? Neon.
  194.  In medicine, which is the most widespread parasitic infection? Malaria.
  195.  What causes earthquakes? Earthquakes occur when energy stored within the Earth, usually in the form of strain in rocks, suddenly releases. This energy is transmitted to the surface of the Earth by earthquake waves.
  196.  What is Galaxy? Galaxy, a massive ensemble of hundreds of millions of stars, all gravitationally interacting, and orbiting about a common center. Astronomers estimate that there are about 125 billion galaxies in the universe. All the stars visible to the unaided eye from Earth belong to Earth’s galaxy, the Milky Way.
  197.  What is an anemometer? Anemometer (Greek anemos, “wind”; metron, “measure”), an instrument that measures wind speed.
  198.  What is paleontology? Paleontology, study of prehistoric animal and plant life through the analysis of fossil remains.
  199.  How far is the sun from earth? the average distance from Earth is 150 million km (93 million miles).
  200.  What was the first creature to travel in space? The Soviet Union also launched the first living creature, a dog named Laika, into space on November 3, 1957.
  201.  What is dry ice? Solid carbon dioxide, known as dry ice, is widely used as a refrigerant. Its cooling effect is almost twice that of water ice; its special advantages are that it does not melt as a liquid but turns into gas, and that it produces an inert atmosphere that reduces bacterial growth.
  202. The origin of earth dates back to approximately? 4.6 billion year
  203. The dates on which day and night is equal are? 21st march and 23rd september
  204. Haematite is an ore of iron.
  205. Earth completes one rotation on its axis in? 23 hours 56 mints and 4.9 sec
  206. Which of the following gases is most predominant in the sun? Hydrogen
  207. The coldest planet is Neptune.
  208. The Cornea of the eyes is the only part of body without blood supply.
  209. The Average weight of man’s brain is 4.8 ounces.
  210. The Average weight of woman’s brain is 4.4 ounces.
  211. The most common element in the atmosphere is Nitrogen (N), which is present at 78.08 percent by volume and 75.52 percent by mass.
  212. The most common element in the universe is Hydrogen (H), according for 90 percent of all known matter in the universe, and68 percent by mass in the Solar System.
  213. Radium was discovered by Mario Curie Pierre Curie.
  214. Railway Engine was invented by Stephenson.
  215. The largest bone of human body is Thigh Bone.
  216. The proportion of water in human body is about 85%. (Blood in Human Body 5-6 Liter 10 % of total volume )
  217. Cockroach is considered as the ancient insect of the world.
  218. “Rickets” is a disease of the bones ( due to deficiency of Vitamin D ).
  219. Sound will travel fastest in Solids.
  220. Lack of oxygen at high altitude produces bleeding.
  221. Chronometer is used to measure time while on ship.
  222. Dental enamel is the hardest thing present in a human body.
  223. The density of a liquid is measured by Hydrometer.
  224. ‘Fathom’ is the unit of measurement of depth.
  225. Iron is the most widely used metal.
  226. A human body has 236 joints. (206 bones , new baby contains 300). There are 24 ribs in a human body.
  227. A colour blind person cannot distinguish between Red and Green.
  228.  Hippocrates is considered as the father of Medicine.
  229. Platinum is the costliest metal in the world.
  230. The main component of a TV is a cathode ray tube.
  231. A man breathes 17 to18 times in a minute.
  232. The breathing rate is controlled by the medulla.
  233. The only metal which is liquid at ordinary temperature is Aluminium.
  234. In the normal composition of human body oxygen is 64 percent.
  235. The use of fingerprints for identification purposes was first proposed by the British scientist Sir Francis Galton.
  236. Who invented ‘Printing Press’? Gutenberg
  237. Who invented ‘Television’? John L. Baird
  238. Who was the inventor of ‘mercury thermometer’? Fahrenheit
  239. Albert Einstein presented ‘theory of relativity’.
  240. Insulin was invented by F. Banting.
  241. Who discovered ‘X-rays’? Roentgen
  242. Dr. Alfred Bernhard Nobel discovered Dynamite
  243. ‘Law of gravitation’ was introduced by Sir Isaac Newton
  244. ‘Vaccination for smallpox’ was discovered by Jenner
  245. Who discovered ‘Oxygen’? Priestley Joseph
  246. What is the scientific name of man? Homo sapiens
  247. Polio, AIDS and Measles are caused by Virus
  248. T.B., leprosy , whooping cough and diphtheria are caused by Bacteria
  249. Lack of vitamin B can cause Beri Beri
  250. Goiter is caused by Deficiency of Iodine
  251. Man eat both plants and animals so called Omnivore
  252. Pepsin produced in stomach digests the Proteins
  253. Bile is secreted by Liver
  254. Blood sugar level is controlled by hormone called Insulin
  255. DNA double helix model was given by Watson and Crick
  256. Who gave the theory of evolution? Darwin
  257. Pituitary glands are located on Brain
  258. Tears are produced by Lachrymal glands
  259. In human eye image is formed at Retina
  260. Lemon contains vitamin C vitamin
  261. What is diploid number of man’s chromosome? 46
  262. A patient is put to Dialysis, when he or she suffers from Kidney ailment
  263. Acquired Immune Deficiency Syndrome (AIDS) is infected by Virus
  264. A universal donor has blood group is O (reciepter A&B)
  265. Kangaroo is native animal of Australia
  266. Helium, neon and argon are called Noble Gases
  267. Water is made of which two gases? Hydrogen and Oxygen
  268. Copper is used in making brass, bronze and German silver.
  269. Which atom does not have a neutron? Hydrogen
  270. The charge present on an electron is Negative
  271. The charge present on a proton is Positive
  272. Water was discovered by Cavendish
  273. Most abundant element in human body is Oxygen
  274. Which of the following is the lightest element of the periodic table? Hydrogen
  275. An instrument used for measuring atmospheric pressure is called Barometer
  276. Natural radioactivity was discovered by Becquerel in 1896
  277. Neutron was discovered by Chadwick
  278. The circumference of the earth was determined by Al-Beruni
  279. Telephone was invented by Graham Bell
  280. SI unit of length is Metre, SI unit of force is Newton, Unit of work in SI units is Joule and Unit of Power in SI unit is Watt.
  281. Energy possessed by a body due to its motion is called Kinetic Energy
  282. Lens which is thinner at the centre and thicker at the edge is called Concave Lens .
  283. A lens which is thicker at the centre and thinner at the edges is called Convex Lens
  284. The diameter of a lens is called Aperture
  285. Energy in sun produced by hydrogen nuclei is the result of Fusion
  286. Ohm is unit of which quantity? Resistance
  287. Calorie is unit of which quantity? Heat
  288. Dyne is unit of which quantity? Force
  289. Angstrom is unit of which quantity? Length
  290. Becquerel is unit of which quantity? Radioactivity
  291. Who invented printing press? John Guttenberg
  292. A beam of white light passing through a prism scatters in Seven colours
  293. How much time does the sun light take to reach the Earth? 8.5 minutes
  294. The Sun is made of gases mainly Hydrogen and Helium
  295. The outer surface temperature of the Sun is 6000 0C
  296. In the core of the Sun Nuclear Fusion process is occurring all the times.
  297. Which is the hottest planet of our solar system? Venus
  298. Which planet is closest to the Earth? Venus
  299. Which planet is biggest from the Sun? Jupiter
  300. Which is the closest planet to the Sun? Mercury
  301. During Solar eclipse the moon comes between the Earth and the Sun.
  302. During Lunar eclipse the Earth comes between the moon and the Sun.
  303. The greenish planet of solar system is Uranus
  304. Which planet of solar system is red in colour? Mars
  305. Name the blue coloured planet. Neptune
  306. Formation and change of one season to another is due to Earth Revolution
  307. The Sun appears to rise from the East and set into the West due to Rotation of Earth
  308. ROM stands for Read Only Memory
  309. A byte is a group of 8 bits
  310. SIMM stands for Single Inline Memory Module
  311. Four nibbles are equal to Two Bytes
  312. Smallest unit of memory is Bit
  313. 1 Megabyte is equal to 1024 Kilobytes
  314. 1 Kilobyte is equal to 1024 Bytes
  315. A condition in which memory lost is called Amnesia.
  316. Which planet is known as “Earth’s near twin planet”? Venus
  317. Which is the brightest planet in the Solar System? Venus
  318. The smallest, fastest and smallest diameter planet is Mercury.
  319. Which one of the following planets has the maximum number of satellites? Jupiter
  320. To measure electric current: Ammeter is used
  321. Which instrument is used to measure blood pressure? Sphygmomanometer
  322. Which instrument is used to measure minute electrical currents? Galvanometer
  323. Hydrometer is the device that measures: The specific gravity of a liquid
  324. Hygrometer is used to measure: humidity
  325. What is used for detecting and measure earthquakes? Seismograph
  326. What splits light into its spectrum? Spectroscope
  327. Thermometer is used to measure: Temperature.
  328.  The science of study of old age is called Gerontology
  329.  The function of the thermostat in a refrigerator is To maintain the temperature
  330.  Blotting paper absorbs ink because The action of capillary
  331.  Name the vaccine that protects against tuberculosis? BCG
  332. bacillus Calmette-Guérin
  333.  Name the disease of the liver that causes a patient to turn yellow? Jaundice
  334.  Equinox is the time when the sun appears vertically overhead at noon at the equator.
  335.  In the human body, blood-clotting factor is produced by the liver
  336.  Human blood is able to carry large amounts of oxygen because of the chemical hemoglobin
  337.  The living part of a plant cell is composed of a nucleus and cytoplasm
  338.  The front of the eye is covered with a tough transparent material called CORNEA
  339.  The smallest branches of an artery lead into tiny blood vessels called CAPPILARIES
  340.  Insulin is produced in the human body by the Pancreas
  341.  In an animal cell protein is synthesized in the Ribosome
  342.  Chemically finger nails are made up of Protein
  343.  Muscle stiffness is a symptom caused by the disease Tetanus
  344.  The fat in our food is digested by the enzymes lipase
  345.  Sound is a form of energy
  346.  A fraction of sunlight is refracted as it enters the earth’s atmosphere.
  347.  Electric current is measured by an Ammeter.
  348.  Light with larger wavelength than that of the red colour is called infrared
  349.  Medulla Oblongata connects the small brainwith the spinal chord.
  350.  Spinach is a good source of vitamin A, B2 (Riboflavin) and Iron.
  351.  Femur is a bone of the leg.
  352.  Excessive burning of fossil fuels cause acid rain.
  353.  Planet Mars has two moons.
  354.  Bauxite is an ore of aluminium
  355.  Mica is a nonconductor of electricity
  356.  Sun is the biggest star in the universe.
  357.  The capacity to do work is called energy.
  358.  The energy possessed by a body die to its position is called potential energy.
  359.  Nucleus usually lies in the centre of an animal cell
  360.  Calcium and phosphorus are the essential elements of bones.
  361. (vi) Proteins are formed by combination of amino acids.
  362. (vii) Rainwater dissolves sulphur dioxide to form sulphuric acid.
  363.  The set of instructions given to a computer is called software.
  364.  In a heat engine, heat energy is changed into mechanical energy
  365.  The smallest unit of measurement of wavelength is angstrom
  366.  The chemical generally used in refrigerators is ethylene
  367.  Period of famous Muslim scientists is 7th – 13th century A.D.
  368.  Heat radiation travels at a speed equal to speed of light
  369.  Amoeba is a unicellular animal.
  370.  Leprosy is a disorder of the nervous system.
  371.  Quartz is chemically a Silicate.
  372.  Solar eclipse occurs in New moon.
  373.  Centigrade & Fahrenheit scales give same reading at – 400o
  374.  Who described protoplasm as the physical basis of life? T. H. Huxley
  375.  The scientist who first discovered that the earth revolves round the sun was Copernicus
  376.  Who invented the steam engine? James Watt
  377.  Who discovered circulation of blood in human body? William Harvey
  378.  The credit of inventing the television goes to Baird
  379.  The credit of developing the polio vaccine goes to Jonas Salk
  380.  The unit of energy in MKS system is Joule
  381.  The telephone was invented by Alexander Graham Bell
  382.  What is the body temperature of a normal man? 36.9oC
  383.  The pancreas secretes Insulin
  384.  Tibia is a bone found in the Leg
  385.  The largest part of the human brain is the Cerebrum
  386.  Red blood corpuscles are formed in the Bone marrow
  387.  What is the main component of bones and teeth? Calcium sulphate
  388.  The main constituent of hemoglobin is Iron
  389.  The function of hemoglobin is Prevention of anemia
  390.  Malaria is a disease which effects the Spleen
  391.  A person of which of the following blood groups is called a universal donor? O
  392.  A person with which of the following blood groups can receive blood of any group? AB
  393.  Which gland in the human body is called the master gland? Pituitary
  394.  How many bones are there in a newly born infant? 300
  395.  Which of the following diseases is caused by virus? Small pox
  396.  Medulla oblongata is a part of human Brain
  397.  Myopia is a disease connected with Eyes
  398.  Leukemia is a disease of the Blood
  399.  Short-sightedness can be corrected by using Concave lens
  400.  Trachoma is a disease of the Eyes
  401.  Typhoid and cholera are typical examples of Water-borne disease
  402.  Pyorrhea is a disease of the Gums
  403.  Lack of what causes diabetes. Insulin
  404.  Appendix is appendix is a part of Large intestine
  405.  ECG is used for the diagnosis of aliments of Heart
  406.  Biopsy is done on Tissues taken form a living body
  407.  Dialysis is used for the treatment of Kidney failure
  408.  Insulin is injected into the intestines by Pancreas
  409.  Lock Jaw, i.e., difficulty in opening the mouth is a symptom of Tetanus
  410.  Lungs are situated in the Thoracic cavity
  411.  Enzymes help in Digestion of food. Food is normally digested in the Small intestines.
  412.  The planet of the solar system which has maximum numbers of Moon is Jupiter (as of 2011)
  413.  A unit of length equal to the average distance between the earth and sun is called Astronomical unit
  414.  The ozone layer is present about 30miles (50km) in atmosphere above earth. The stratum (layer) of atmosphere in which ozone layer lies is called as Stratosphere
  415.  Which rocks are formed by the alteration of pre-existing rocks by great heat or pressure
  416. Metamorphic rocks
  417.  The most abundant natural Iron oxides are Hematite and Magnetite
  418.  The most abundant elements in sea water Sodium and Chlorine
  419.  The unit of home electricity energy consumption is Kilowatt hour
  420.  The speed of sound in dry air at 20 C is about (343 m/s)
  421.  The time light takes from Sun to reach Earth is 8 minutes
  422.  Light from Sun travels a distance before it reaches Earth 150 Million Km
  423.  The most suitable thermometer for measuring the boiling point of water is Mercury thermometer
  424.  The density of water is greatest at 4°C
  425.  A vacuum can not conduct heat
  426.  The building blocks of elements are called Molecules
  427.  Boiling of an egg is a change which is Chemical
  428.  The usual raw material for ceramics, generally found beneath the top soil is? Clay
  429.  Polyamides are synthetic polymers commonly known as Nylon
  430.  Telephone was invented in 1876 in America by Graham Bell.
  431.  Man belongs to the family Hominidae
  432.  To measure the specific gravity of milk, the instrument used is Lactometer
  433.  one of the fundamental characteristics of living organisms is Metabolism
  434.  Water is heated in a kettle. The inside water is heated by convection. A person sitting near the fire receives heat by Radiation
  435.  Three elements needed for the healthy growth of plants are N,P,K
  436.  Parsec is a unit of Distance
  437.  Twinkling of stars is caused by refraction of light
  438.  In humans , most nutrient molecules are absorbed by the small intestine
  439.  Laughing gas has chemical composition of the following two elements which are Nitrogen + oxygen
  440.  Hepatitis A is transmitted to different individuals by Water
  441.  The unit that coordinates different devices of the computer system is Control unit
  442.  Cancer can be treated by Chemotherapy and radiotherapy
  443.  The name of the common mineral salt present in sea is Sodium Chloride
  444.  Founder of modern astronomy was Nicolas Copernicus
  445.  The instrument which measures very high temperature is Pyrometer
  446.  Chemical used to kill rats and mice are Rodenticides
  447.  The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called Aphelion
  448.  Which of the following layers make radio transmission possible?Ionosphere
  449.  Which of the following explains the reason why there is no total eclipse of the sun?
  450. Size of the earth in relation to that of moon
  451.  Which one of the following is a non-metallic mineral? Gypsum
  452.  Yeast is used in making bread because it produces Carbon dioxide
  453.  Oasis is associated with Desert
  454.  Name the famous book of Ibn-Sina in which he discussed human physiology and medicine? Al-Qanoon
  455.  Animal which captures and readily kills living animals for its food is called Predator
  456. An alimeter is used for measuring Altitude۔