General Knowledge
Ans : Watt.
Ans : Cosmic rays are radiation from outer space, which bombard the earth. They constantly strike the molecules of the earth's upper atmosphere. As a result, additional radiations are produced. The atmosphere absorbs most of these rays.
Ans : Copernicus.
Ans : It means drawing out poison from the serpents for medical use.
Ans : Council of Scientific and Industrial Research
Ans : Salk Vaccine. It was discovered by Jonas Edward Salk in 1952. The theory behind the Salk Vaccine is that a virus that has been killed cannot infect or multiply, but it can still produce antibodies against that particular virus. The vaccine was tested first on monkeys and eventually on children, including Dr. Safk's three children, before it was released for nationwide distribution.
Ans : The shaping of metals by hammering them is called forging.
Ans : Honey.
Ans : Lactic Acid is formed when the glycogen or sugar in the muscles is used. This makes us feel tired.
Ans : Rudolf Diesel.
Ans : Iron.
Ans : Fossils
Ans : Fog is water vapour condensing near the surface of the earth. Fog differs from clouds in that fog is close to the earth and clouds are in the sky.
Ans : Four. Right auricle, left auricle, right ventricle and left ventricle.
Ans : Apogee.
Ans : Animals with thick skin like elephants and rhinoceros.
Ans : Sir Humphry Davy.
Ans : George Stephenson.
Ans : To keep cool and protect itself from insect bites.
Ans : Tortoise.
Ans : Bacteriology
Ans : Lactobacillus.
Ans : It has heat sensory cells in the pits between the eye and the nostril, which detect warm-blooded animals.
Ans : Sir Joseph Swann
Ans : Zirconium
Ans : An instrument for measuring the intensity of light.
Ans : It flicks out its long sticky tongue and catches unwary insects flying by.
Ans : They emit sounds of low intensity, which are reflected from the objects around them. This helps the bats to move about.
Ans : Michael Faraday.
Ans : Mercury
Ans : Joseph Priestley. Because the gum could rub oui pencil marks.
Ans : Molecules of oxygen, nitrogen and other gases in the air keep on spreading all around them.
Ans : Inside the sun a reaction similar to that of a hydrogen bomb goes on continuously. Two atoms of hydrogen fuse to produce an atom of helium. The sun is today at the midway of its life.
Ans : Obligate Parasite
Ans : Robert Hooke
Ans : Refraction
Ans : ntroduction of germs into a body to precipitate a mild form of a disease. As a result antibodies are produced, which protect the body from the invading germs.
Ans : Johannes Gutenberg of Germany in the middle of the | 15* century.
Ans : Spleen.
Ans : Sir J.A.Fleming
Ans : Electrolysis is the decomposition of a substance using electricity. For example when table salt is subjected to electrolysis, it turns into sodium and chlorine.
Ans : Blaise Pascal.
Ans : Nitrogen and oxygen.
Ans : CHcl3
Ans : Solid,liquid and gas
Ans : Robot is any machine, developed by man to do the work of a human being such as running a machinery by remote control or to operate devices like switch boards automatically. It is usually directed by sound waves, light waves or radio waves.
Ans : African Elephant.
Ans : Fulcrum is the point about which a bar or lever will rotate, when a force is applied at any distance from that point or axis.
Ans : Quicksand is a bed of very fine, powdery wet sand. It is a thick fluid. Once a foot is placed on quicksand, it is not easy to pull it away. The foot may slowly sink in the quicksand. Struggling to take out the foot may sink the foot further down. It is advisable to wait for help. If a man remains calm and does not move his foot, he may stop sinking.
Ans : An ostrich has two toes in each leg.
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