Answer:
Magma that flows then cools on the earth's surface fast enough that there is no time for any crystals to form on the rocks and are as smooth as glass.
Explanation:
Kinetic energy is the answer because it is in motion
I think the correct answer from the choices listed above is the last option. The control group to be used to test the hypothesis would be the swallows with average-length tails. A control group <span>is defined as the </span>group<span> in an experiment or study that does not receive treatment by the researchers.</span>
Its has to be A that's just plain common sense
