Scenario: A farming region begins using precision agriculture technology that applies fertilizer only where needed, reducing overall fertilizer use. How is this approach most likely to impact nearby water systems?

Scenario: A region experiences prolonged drought, reducing water availability for agriculture and drinking water. Which factor is most directly contributing to this issue?

Ecosystems include both living organisms and nonliving environmental factors.

Scenario: Forests are allowed to regrow naturally after being cleared. What ecological process is taking place?

Scenario: A landfill is designed with liners and leachate collection systems. What is the primary purpose of these features?

Which of the following causes thermal pollution?

Nonpoint source pollution is typically easier to control than point source pollution.

Scenario: A species of insect survives pesticide application because a few individuals have natural resistance and reproduce. Which concept explains this change in the population?

Scenario: Wind energy production cannot meet demand during certain times of day.  What solution would best address this issue?

Scenario: Increased phosphorus levels in a lake lead to rapid algae growth and fish die-offs. What directly causes the fish to die in this situation?