Which major atmospheric component is chiefly a product of life processes?
A)carbon dioxide
B)water
C)oxygen
D)hydrogen sulfide
E)nitrogen

Question

Quizplus · Accepted Answer

Oxygen is primarily produced through photosynthesis by plants and other photosynthetic organisms. While carbon dioxide is also a byproduct of life processes, it is not primarily produced through photosynthesis and can also be produced through natural geological processes. Water is a compound that is essential for life, but it is not a product of life processes. Hydrogen sulfide is a compound produced by some bacteria and is not a major atmospheric component. Nitrogen is a major component of the atmosphere, but it is not primarily a product of life processes. Oxygen is a major atmospheric component that is chiefly produced by photosynthesis, which is a life process. Plants and some bacteria produce oxygen through the process of photosynthesis, during which they absorb carbon dioxide and release oxygen into the atmosphere. Oxygen is also consumed by life processes, such as respiration, which means that it is constantly cycled through the atmosphere. Therefore, oxygen is a major atmospheric component that is closely tied to life processes.

Which Major Atmospheric Component Is Chiefly a Product of Life