What are the two most important driving forces of metamorphism?

The two most important driving forces of metamorphism is high heat and pressure. Metamorphism is the changes in mineral, texture and chemical composition that occurs when a rock undergo conditions such pressures and temperatures that are different from those under which the rock was initially formed. Metamorphism occurs at high temperatures and pressures.

i'm gonna put a couple so you can chose from

explanation:

if you know the fur color of the offspring mice, you can use the ratios to identify the genotypes of the parents.

if either parent mouse passes a dominant allele, the offspring will have black fur.

if the parental mice has two different fur color (i.e white and black) , the color of the offspring's fur would be either black, white, or the combination of both (grey)

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the real answer is b. scintillation counter