Question

The Earth is the only planet known to support life. Which of the following is a major contributing factor to the Earth's ability to support life?

A. The Earth is surrounded by a layer of air that includes oxygen.
B. The Earth has a magnetic field with north and south poles.
C. The Earth orbits the Sun and is orbited by the Moon.
D. The Earth has an iron-rich core and is made mostly of rock.

Answer 1

Answer: A. The Earth is surrounded by a layer of air that includes oxygen.

Explanation: Look At The Image

Answer 2

i’m pretty sure the answer is A