Answer:
Pollution is the presence of harmful materials in the environment of a substance that has harmful or poisonous effects. Nitrogen dioxide (NO2) and Carbon monoxide (CO) are 2 pollutants of air and Industrial Waste and Sewage and Wastewater are 2 pollutants of water.
Carbon is found in all of these! all the above :) carbon is one of the most “used” elements of the earth.