Why did earth most likely form into distinct, separate layers? (HELP ASAP PLZ)

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

The slope of a velocity time graph over any interval of time gives the during that interval

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?