all of the following human activities have had a negative impact on the planet except
a. beach renourishment.
b. burning fossil fuels.
c. depletion of nonrenewable resources.
d. oil spills.

Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration