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11.Organisms and Populations
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Which of the following changes would be likely to make terrestrial life on this planet impossible
A
A decrease in mean temperature by $10° C$
B
Change in atmosphere permitting all the solar radiation reaching the upper atmosphere to penetrate to the surface of the earth
C
Change in the orbit of the earth from an ellipse to a circle
D
Disappearance of the moon
Solution
It’s obvious.
Standard 12
Biology
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