Author Question: Desertification A) is caused solely by human actions. B) is caused solely by environmental ... (Read 100 times)

future617RT · **on:** Jul 13, 2018

Desertification
A) is caused solely by human actions.
B) is caused solely by environmental actions.
C) decreases the likelihood of drought.
D) has hit equatorial Africa the hardest.
E) can cause changes in atmospheric circulation.

Question 2

The Antarctic ozone hole
A) appears when polar stratospheric clouds evaporate.
B) is about the same intensity as that found over Arctic regions.
C) had nearly disappeared by the end of the 1980s.
D) appears in the upper troposphere.
E) appears only when no direct sunlight hits the atmosphere above Antarctica.