Asap! 20 points! 1. metamorphic rock forms from other rock when it is subjected to significant changes in which of the following? select all that apply. a) heat b) pressure c) deposition d) chemical environment

All the options (heat, pressure, deposition and chemical environment) are correct.
Metamorphic rocks are formed when pre-existing rocks are subjected to heat, pressure and hot mineral rich fluids which cause physical, chemical and mineralogical changes to the rock. Metamorphic rocks are grouped by chemical, texture and mineralogy. The common metamorphic rocks include schist, marble, and gneiss.  

No 1 very mooch