The endoplasmic reticulum is A) serves as the internal transportation system of a cell

B) manufacturers atp

C) is characterized by the presence of ribosomes throughout

D) is the inner membrane of the mitochondria

False.

Explanation:

Air pollution occur when harmful substances or gases are released into the air which is harmful to humans, plants and animals.

It is not all human activities that lead to air pollution , some are of natural sources.

The non human activity that lead to air pollution are dust and wildfire, dust occur when a vast land is been swept or blown by wind,volcanic eruption which lead to release of particulate substances,animal digestion I.e digestion of food eaten by animals especially cattle lead to release of methane as waste product which cause air pollution e.t.c