The nitrogen fixation is a very important process because it is the principal source of nitrogen in the marine environment for photosynthetic plants. Nitrogen is a growth limiting nutrient, that is very important for the growth of photosynthetic plants. During the process of nitrogen fixation, nitrogen is absorbed from the atmosphere and it is fixed by nitrogen fixing organisms.
Alright my friend basically it would be 30% our atmosphere and clouds are the one who do it if were more than 30% there would be a lot higher risk of cancer
Answer and Explanation:
Humans are one of the most powerful biotic factors. Human activities have had great influence on the distribution of other organisms. The use of aerosols and industrial chemicals like chlorofluorocarbons which are residual and persistent can cause depletion of the ozone layer. This results in harmful radiations from the sun reaching the earth's surface.
Excessive production of CO2 by the industries and removal of vegetation like the trees results in the accumulation of CO2 in the lower atmosphere. This causes the greenhouse effect which results in global warming.
Radioactive emission from nuclear reactors, mine and radioactive wastes causes cancer, mutations and even death.
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