Answer:
Because of their wave movement, P waves travel through any kind of material, whether it is a solid, liquid or gas. On the other hand, S waves only move through solids and are stopped by liquids and gases. ... This also accounts why fewer S waves are recorded than P waves.
The density of an object or quantity of matter is its mass divided by its volume. ... Non-standard conditions can result in a change of volume, affecting the density of the materials. Also, certain temperatures and pressures can result in a change the state of the matter, which also affects the density.
A scientific theory is something believed to be true, thus already tested. When you make an observation you infer, and test your observations to see if they’re true. Please mark me brainliest if I helped :)
Answer:
It might be number 1 but sorry if I'm wrong
Explanation:
