Just as the other person said the answer is C
Answer:
Currently the accepted model on how the earth and planets in general form. Before the earth, sun and solar system were around, only tiny particles of space dust and debris were present. Something then happened to disturb these particles, possibly the explosion of a nearby star, and as a result, the sun was born.
Explanation:
it serves as a source of living for man
The P wave is the primary preliminary wave because it is the first to arrive at a seismic station after an earthquake.
