number 1 is not part of the theory of evolution.
Evolution is change in the heritable characteristics of biological populations over successive generations.
<span>The location in which a person is more likely to receive an echo of the soud being sent is at least 16.6. meters in front of the reflecting surface. Therefore, the answer is to this item is letter A. The speed of sound without any interference is only about 340 m/s traveling through the vibration of the media in which it passes through. </span>
I would say B. A hockey puck sliding across the table