I believe it would be A, frogs and spiders, because frogs and spiders both eat grasshoppers. But I cannot see the diagram it talks about, so it's harder to tell.
<h2>Answer:</h2>
Option 3 is correct.
3. The molecular collisions are perfectly elastic.
<h2>Explanation:</h2>
According to the kinetic molecular theory, the molecular collisions are perfectly elastic, so the the molecules of a gas striking with the wall of container are elastic and they are exerting considerable pressure on the walls of container. This pressure is actually exerted against the walls is less for real gases as compared to ideal gases.
It is called nuclear energy.
The water levels would lower, because as the moon gets farther away, it's gravitational pull decreases. Hope this helps! :)
The trophosphere contains the most water vapor!