4. Which of the following is the primary control of how much water vapor the air can hold?

a. Number of particulates present
b. Temperature of the air
c. Specific heat of water
d. Amount of dry gases present

answer: b

6. Which of the following would cause relative humidity to increase?
a. Adiabatic warming of the air
b. Cooling the air
c. Removing water vapor from the air
d. Decreasing the mixing ratio

answer: b

are these correct?

2 answers

Since this is not my area of expertise, I searched Google under the key words "humidity and temperature" to get these possible sources:

https://www.google.com/search?client=safari&rls=en&q=humidity+and+temperature&ie=UTF-8&oe=UTF-8

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
This might be additional help.

http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html