Question

The Earth's atmosphere is made up

of
A. all life on Earth including plants, animals, and
people
B. all the air that is in the sky; mostly nitrogen and
oxygen
C. all of the water on Earth including oceans, rivers,
lakes, streams, and ponds

Answer 1

B. all the air that is in the sky; mostly nitrogen and oxygen.

Answer 2

b

Step-by-step explanation: