Question

pls answer these questions with steps ​

Answer 1

Step-by-step explanation:

Question 1-

Fraction:3/10,2/6

Sum: 3/10+2/6

9/30+10/30

19/30

Question 2-10/100=1/10

Answer 2

above one is correct

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.