The major difference in the composition of Earth's atmosphere compared to the atmospheres of Venus and Mars is a direct consequence of
A) life on Earth.
B) Earth's plate tectonics.
C) differences in the greenhouse effect.
D) the presence of liquid water.
E) differing distances from the Sun.

Question

Quizplus · Accepted Answer

Life on Earth, particularly photosynthetic organisms, has significantly altered the atmosphere by increasing oxygen levels and reducing carbon dioxide, unlike Venus and Mars.

The Major Difference in the Composition of Earth's Atmosphere Compared