Select the correct answer.
how much solar radiation is reflected back by clouds?
5 percent
a
b.
10 percent
c.
19 percent
d.
30 percent

Drag each item into the proper state of matter category.

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.

Use the illustration to describe how the electromagnetic spectrum changes as its frequency moves from radio waves to higher energy gamma waves in terms of wavelength and amplitude.