Write a short note on the activities that cause Air pollution.?

Fuel combustion from motor vehicles (e.g. cars and heavy duty vehicles)

Heat and power generation (e.g. oil and coal power plants and boilers)

Industrial facilities (e.g. manufacturing factories, mines, and oil refineries)

Municipal and agricultural waste sites and waste incineration/burning

Residential cooking, heating, and lighting with polluting fuels

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.