Which of these ideas did you include in your answer? Check all that apply.
Answer
A
A virtual watershed was used to model and observe the flow of point and nonpoint pollution through the watershed and the effect of environmental changes on living and nonliving things.
B
If an environmental change affects abiotic factors, it will also affect the biotic factors in an ecosystem because these factors are closely linked.
C
Human activity can have a negative impact on an ecosystem.