Answer:

Nitrogen is a Key Element in the nucleic acids DNA and RNA, which are the most important of all Biological Molecules and Crucial for all Living things.

Explanation:

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Answer:

1.Nitrogen (N) is one of the building blocks of life: it is essential for all plants and animals to survive. Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life’s blueprint for all cells, and in many other organic and inorganic compounds. In addition, nitrogen comprises about 80% of the Earth’s atmosphere.

2.N2, is a compound made when two nitrogen atoms form a chemical bond. It makes up about 80% of the atmosphere, while oxygen gas, O2, makes up a little less than 20% of the atmosphere. So nitrogen gas is very common and plentiful. Nitrogen is a component of amino acids and urea. Amino acids are the building blocks of all proteins. Proteins comprise not only structural components such as muscle, tissue and organs, but also enzymes and hormones essential for the functioning of all living things. Urea is a byproduct of protein digestion.

Denitrification is an anaerobic process. This means it only takes place when no oxygen or extremely low concentrations of oxygen are available. Denitrification also requires a source of carbon. Bacterial species can take nitrate and change it back to nitrogen gas through denitrification. Farmers can add nitrogen fertilizer to produce better crops, but too much can hurt plants and animals, and pollute our aquatic systems. It is also essential to life which is a key building block of DNA, which determines our genetics.

3.Without enough nitrogen, plant growth is affected negatively. With too much nitrogen, plants produce excess biomass, or organic matter, such as stalks and leaves Eutrophication happens when too much nitrogen enriches the water, causing excessive growth of plants and algae. The Nitrogen Cycle give the clear details of how nitrogen moves from the atmosphere to earth, through soils and back to the atmosphere in an endless Cycle and can help us grow healthy crops and protect our environment.

Explanation:PA BRAINLIEST