Question

Many of the workers become sick due to exposure to
and
A) dust
B) chemicals
C) Both A & B
D) None​

Answer 1

Answer:

it will be both A and B

Answer 2

Answer:

c) both a and b

Explanation:

An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.