I think it's the first and second option but I could be wrong because I don't know much about deserts :)
The reactions release chemical energy that the cells can use to power growth and other important cell processes
<span>All the options (heat, pressure, deposition and chemical environment) are correct.<span>
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.
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I think temprature and the right ph level