Respuesta :
Answer:
That answer the other person gave was wrong dude was guessing.
The actual answer is B
Explanation:
sorry about everybody that followed that guy, i had to learn the hard way.

Earth’s atmosphere supports life by keeping the earth warm.
Earth atmosphere
The Earth atmosphere protects life on earth by shielding the earth against ultraviolet (UV) radiation. This keeps the planet warm through insulation, and preventing extremes between day and night temperatures.
The atmosphere on earth is composed of about 78% nitrogen, 21% oxygen and 1% of inert gas.
Find out more on Earth atmosphere at: https://brainly.com/question/921955