-Listening to Earth - How is this related to plate boundaries?
-What makes these noises? Why listen in this canyon?

Listening to Earth is an article about the study of the plate boundaries using hydrophones which make noises and different sounds.

Explanation:

Listening to Earth is an article which was written about the studying of the plate boundaries by Dziak and his team. Since it is tough to send people to the bottom surface of the ocean, they made use of hydrophones making them listen to various sounds.

These sounds are made by the movement and the motions of the plate boundaries from their original position which many a times lead to the earthquakes.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

light dependent reactions:

light independent reactions:

hope this !