Answer:
During a drought, there is less water available for the plants. There is less runoff and less infiltration. During a drought, less water is returned to the atmosphere by the plants through transpiration, and there is a decrease in the plants' rate of photosynthesis.
(C) they used trans-Saharan trade route to acquire expensive ivory.
Answer:
The earliest primates are found in the Paleocene epoch. :)
I believe the answer is that the CFCs cause low ozone concentrations in the atmosphere.
Sorry if I'm wrong, hope this helps.
