Answer: C. Desert
Explanation: Since deserts lack plant cover, rainfall, sheet wash, and stream flow are all extremely effective agents of erosion.
(Not sure bout Q.2.)
Answer:
B. US Fish and Wildlife Service
Explanation:
FWS are enforcing federal wildlife laws which in turn helpd protect endangered species, conserving and restoring the habitats.
It determines the amount of water of water available for it. like weathering.