The major source of free oxygen in the atmosphere is from ______ .
A) water
B) silicate minerals
C) glaciers
D) green plants
E) molten rock

Name: The major source of free oxygen in the atmosphere is from ______ . A) water B) silicate minerals C) glaciers D) green plants E) molten rock
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Question

Quizplus · Accepted Answer

Green plants, through the process of photosynthesis, are the major source of free oxygen in the atmosphere. They take in carbon dioxide and release oxygen as a byproduct.

The Major Source of Free Oxygen in the Atmosphere Is