What is special about nitrogen and what is its main function in the atmosphere?

Nitrogen is special in that it makes part of the nucleic acids namely DNA and RNA without which there can be no continuity of life  on earth.

Nitrogen is essential to all living systems. About  78 percent of earth's atmosphere is made up of nitrogen gas.

The function of nitrogen in the atmosphere is that forms part of the nitrogen cycle which is essential to life on earth.

During electrical storms, large amounts of nitrogen in the air are oxidized and united with water to form an acid that falls to earth in rainfall and deposits nitrates in the soil.

Plants take up nitrates, essential to plant growth and development,  and convert them to plant protein. Animals consume the plants as food and so life is sustained.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

it would lead to upper respiratory infections and pneumonia.