is called pollution.
B)
might cause acid rain.
C)
is always a carcinogen.
Eliminate
D)
helps deplete the ozone layer.
Any potentially harmful substance that humans add to an ecosystem is called pollution. Thus the correct option is A.
An ecosystem is a place where different types of livingthings coexist to create a sphere of life. Abiotic elements, or nonliving components, coexist with biotic components in ecosystems.
Pollution is caused by harmful substances that are released from the activities caused by humans. This harmful effect disturbs the balance of the ecosystem and appears results as hazardous.
There are different types of pollution that occur which include air pollution caused by smoke from industries and factories, water pollution caused by throwing garbage in water sources, and so on.
Therefore, option A called pollution is appropriate.
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A Whisperer
B Announcer
B)Restore the accreditation to state colleges and universities.