Question

what is refraction

Nitrification is the biological oxidation of ammonia to nitrite followed by the oxidation of the nitrite to nitrate occurring through separate organisms or direct ammonia oxidation to nitrate in comammox bacteria. The transformation of ammonia to nitrite is usually the rate limiting step of nitrification. ​

Answer 1

Answer:

Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circulated. ... In order for the living components of a major ecosystem (e.g., a lake or a forest) to survive, all the chemical elements that make up living cells must be recycled continuously.

Explanation:

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Answer 2

The bending of light ray when passes through a transparent medium is called refraction.

When the light ray moves form rarer to denser medium then it bends towards the normal and when it passes form denser to rarer the light ray passes away from the normal .

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