Answer:
New food and fiber crops were introduced to Eurasia and Africa, improving diets and fomenting trade there.
Answer:
C
Explanation:
effects on animal moments, because the turbines make noise under the water scaring the animals and in some cases chaining migration patterns.
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3 - x = 2^2
3 - x = 4
-x = 4 - 3
-x = 1
x = -1