While cows produce large amounts of methane gas, which can be harmful to the environment, they are not the biggest air polluters. Humans cause the majority of air pollution from burning fossil fuels, improperly disposing of waste, using harmful chemical products, etc.
smog, fog, smoke from a fire
Green plants are not polluters. They absorb carbon dioxide and release oxygen (a good thing), remove pollutants from air (a good thing), fix nitrogen into nitrates (a good thing)
333m http://googlesightseeing.com/2008/03/03/worlds-biggest-aircraft-carriers/
yes they do
Primary polluters are air pollutants that come directly from a source. A volcanic eruption is an example of a primary pollutant.
The air is called flimolenium gas
Yes. The engines burnt Gasoline or Diesel which are fossil fuels giving off carbon dioxide. In those days these engines were very "Dirty" polluters.
TRAINING
Air is approximately 20% Oxygen.
Cows
Because of the Environmental Protection Agency (EPA) monitoring various industrial facilities, giving hefty fines out to those that are major polluters.
coal pollutes the air by smoke and it burns easily plus cows eat grass