A) Cold air
B) Food
C) Oxygen
D) Shelter
Correct Answer: B
Solution :
The food chain would collapse. Some suggest running out of oxygen but the atmosphere is huge (about 80% of the total mass of the atmosphere is contained in the first 6-7 miles over the surface of the earth) and contains 20% oxygen. Animals primarily inhabit the surface of land (plus a good bit of ocean creatures) so they are not likely to be able to consume all the oxygen before starving.You need to login to perform this action.
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