It comes by air being pushed by other air or waves in the air...hopefully this helped you..
Without evidence it’s like saying “trust me bro” you need evidence to support your claims and strengthen your argument.
Some scientists believe that global warming is a myth. Due to whats in the atmosphere and what could be possible with it, they think its not likely.
Answer:
A.
Explanation:
I think it is A because the other reasons are just nonsense. Plus, A makes more sense because they wouldn't go down there to explore the Grand Canyon how they do today. I mean, maybe? But no. It's A. :)