B.2044
C.2048
D.678
Answer:
2044, B
Explanation:
Took the test
Answer:
b
Explanation:
B. effects of a decreasing beaver population
C. effects of agricultural farming
D. effects of density-dependent factors
The correct answer is:
A. effects of dams on society
Explanation:
The exchange of a river's flow and sediment conveyor downstream of a dam often causes the greatest sustained environmental impacts. Yet even complex changes in the number and timing of water flows impact aquatic and riparian life, which can explain the biological web of a river system.