Select the correct answer. What is the primary way that metamorphic rocks form?

Lava erupts from Earth and cools.

Water, wind, and gravity move particles from one place to another.

Rock fragments break apart and collect as sediment.

Existing rocks join together under high heat and pressure.

Plz help

What is the primary justification of the hypothesis that the early earth environment was void of oxygen? ( 2 points) data showing the concentrations of gases extracted from rocks fossil evidence regarding the origin of eukaryotes generally accepted atmospheric conditions molecular evidence based on evolutionary traits.

#4.) describe the most likely weather conditions at indiana / ohio boarder. also could someone double check my other answers? i'd really appreciate it

The position on the earth in which a place can be found