Science MCQ for all exam

Q166. The study of fossils is known as
(a) Geoelology
(b) Petrology
(c) Paleontology
(d) Ornithology

Q167. Which of the following layers of the sun is marked by sunspots
(a) Chromosphere
(b) Corona
(c) Photosphere
(d) Radiation zone

Q168. Enzymes belong to the category of
(a) Proteins
(b) Lipids
(c) Carbohydrates
(d) Steroids

Q169. Nylon was first invented by
(a) Wallace Carothers
(b) C. Goodyear
(c) L. Pauling
(d) E. G. Rochow

Q170. The largest satellite of the Saturn is
(a) Mimas
(b) Titan
(c) Titania
(d) Triton

Q171. Biochemical oxygen demand (BOD) determines the health of
(a) Air
(b) Water
(c) Soil
(d) All of the above

Q172. Which of the following does not belong to vitamin B complex group
(a) Thiamine
(b) Folic acid
(c) Riboflavin
(d) Ascorbic acid

Q173. Which of the following is the main component of bones and teeth
(a) Calcium carbonate
(b) Calcium sulphate
(c) Calcium phosphate
(d) Calcium nitrate

Q174. The elements that show the properties of both metals and nonmetals are called
(a) Allotropes
(b) Metalloids
(c) Alloys
(d) Colloids

Q175. The only molecule in the living world that can replicate itself is
(a) DNA
(b) RNA
(c) Both of the above
(d) None of the above

Q176. The galaxy closest to the Milky way is
(a) Triangulum Galaxy
(b) Capricorn Dwarf
(c) Andromeda Nebula
(d) Burbidge Chain

Q177. Myopia is also known as __________
(a) Far sightedness
(b) Poor sightedness
(c) Extreme sightedness
(d) Near sightedness

Q178. Migration of cacerous cells from the site of origin to other part of the body forming secondary tumours is called
(a) Diapedesis
(b) Metastasis
(c) Proliferation
(d) None of the above

Q179. Choose the best fire extinguisher
(a) Oxygen
(b) Water
(c) Carbon dioxide
(d) Blanket

Q180. Which of the following vitamins is known as ergocalciferol
(a) Vitamin D2
(b) Vitamin D3
(c) Vitamin B12
(d) Vitamin B6

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