The presence of ozone in the stratosphere is responsible for (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets Answer : checking the penetration of ultra-violet rays to the earth...
Sulfuric acid aerosols from the eruption of Mt. Pinatubo reduced the rate of global warming last year. They also contributed to the record size of: w) acid rainfalls in Europe x) the anchovy catch off Peru y) the ozone hole over Antarctica z) fish kills in the Amazon River Answer : ANSWER: Y -- THE OZONE HOLE OVER ANTARCTICA...
Which of the following is least likely to be an effect of global warming? (1) Increased frequency of hurricanes (2) Loss of fertile delta region as for agriculture (3) Decreased rate of photosynthesis in vegetation (4) Shrinking of the polar ice regions Answer : Decreased rate of photosynthesis in vegetation...
Algal bloom results in a) Global warming b) Salination c) Eutrophication d) Biomagnification Answer : c) Eutrophication...
Green house effect is related to a) Increased growth of green algae b) Global warming c) Cultivation of vegetables in house Answer : b) Global warming...
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