Which of the following gases is crucial to the existence of all forms of life? A) nitrogen B) ...

Author Question: Which of the following gases is crucial to the existence of all forms of life? A) nitrogen B) ... (Read 41 times)

j.rubin

Hero Member
Posts: 557

on: Jul 14, 2018

Which of the following gases is crucial to the existence of all forms of life?

A) nitrogen
B) oxygen
C) carbon dioxide
D) argon

Question 2

The average length of time that individual molecules of a given substance remain in the atmosphere is called the:

A) residence time.
B) steady state.
C) thermocline.
D) travel time.

Madisongo23

Sr. Member
Posts: 325

Reply #1 on: Jul 14, 2018

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A

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