A fossils can’t form underwater because of how much oxygen can be found in the water.
The factors in an experiment are called variables. There are three different types of variables. Independent variable, dependent variable, and controlled variable. The independent variable is the one that changes.
They are called a population, because they are the same species living in a given area. The word population means the amount of a certain species living in a certain environment.
Eek
Actually, it is false. P-waves arrive first and then S-waves arrive.