5 Questions
What is the definition of pollution?
When harmful substances contaminate the environment
Which of the following is considered a stationary source of pollutants?
Oil refineries
What are primary pollutants?
Pollutants emitted directly into the environment
Which of the following is a secondary pollutant?
Ozone
What are area sources of pollutants?
Cities
Test your knowledge on pollution and its definition, including its sources and impact on the environment.
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