How did the lab activities help you answer the lesson question: How do environmental changes affect both living and nonliving things in a watershed? What conclusions can you make based on your observations?

Answer:

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. If an environmental change affects abiotic factors, it will also affect the biotic factors in an ecosystem because these factors are closely linked. Human activity can have a negative impact on an ecosystem.