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General Science Online Questions

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Q166. Red snow phenomenon is due to
(a) Acid rain
(b) An algae
(c) Iron element in soil
(d) Blood of dead organosms in snow

Q167. It is dangerous to have charcoal fire burning in a closed room because it produces
(a) carbon dioxide
(b) carbon monoxide
(c) sulphur dioxide
(d) nitrogen dioxide

Q168. Which of the following is the first calculating device
(a) Abacus
(b) Calculator
(c) Pascaline
(d) Turning machine

Q169. If persons addicted to alcohol, the liver gets damaged because it
(a) Has to detoxify the alcohol
(b) stores excess of glycon
(c) is over stimulated to screte more bile
(d) accumulates excess of fats

Q170. Plaster of Paris is produced by heating
(a) Graphite
(b) Gypsum
(c) Zinc
(d) Lead


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