Answer:
Cranial capacity increased the most from 2 million years ago to the present.
Explanation:
The rate of change is greatest between 2 million years ago and the present.
Answer;
C. Poor farming techniques that killed the soil were combined with drought.
Explanation;
-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.
-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
Answer:
1,2 and four
Explanation:
over fishing would cause loss of every species
