APES Unit 7 Test Review

Front

What is the best control group to evaluate treated wastewater from a paper company discharging into a river?

Back

A sample of water upstream from the same river.

Front

Which heavy metal is implicated in human neurological damage?

Back

Lead.

Front

What is primarily responsible for acid rain in the northeast United States?

Back

Coal.

Front

Which element occurs naturally in bedrock and leads to the formation of radon?

Back

Uranium-238.

Front

What toxic substance is found in old plumbing pipes and fixtures?

Back

Lead.

Front

Define acid rain.

Back

Acid rain is precipitation that contains high levels of sulfuric or nitric acids, often due to industrial emissions.

Front

What are the environmental effects of lead contamination?

Back

Lead contamination can cause neurological damage, developmental issues in children, and environmental toxicity.

Front

Explain the significance of control groups in environmental studies.

Back

Control groups are essential for comparison to determine the effects of a variable, such as treated wastewater.

Front

What is the role of coal in environmental pollution?

Back

Coal combustion releases sulfur dioxide, contributing to acid rain and air pollution.

Front

How does uranium-238 contribute to radon formation?

Back

Uranium-238 decays into radon gas, which can accumulate in homes and pose health risks.