The description for the two given process that is nitrogen and the oxygen cycles should be determined. Concept Introduction : Atmosphere: The atmosphere is defined as air that is layer of gases which surrounds the earth due to gravity of earth. The earth atmosphere consists of layers such as thermosphere, mesosphere, stratosphere and troposphere depending on the temperature and its composition. Aerobic respiration: It is one type of respiration in which the organisms undergoes respiration only in presence of oxygen. To describe: The description for the given process namely nitrogen and oxygen cycle.

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Chapter 21, Problem 21.2QP

Interpretation Introduction

Interpretation: The description for the two given process that is nitrogen and the oxygen cycles should be determined.

Concept Introduction:

Atmosphere: The atmosphere is defined as air that is layer of gases which surrounds the earth due to gravity of earth.

The earth atmosphere consists of layers such as thermosphere, mesosphere, stratosphere and troposphere depending on the temperature and its composition.

Aerobic respiration: It is one type of respiration in which the organisms undergoes respiration only in presence of oxygen.

To describe: The description for the given process namely nitrogen and oxygen cycle.

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