Which is needed to turn an igneous rock or sedimentary rock into a metamorphic rock

Question

Which is needed to turn an igneous rock or sedimentary rock into a metamorphic rock

A: erosion and deposition
B: melting and cooling
C: freezing and cememention
D: heat and pressure

Answer 1

D: heat and pressure

Answer 2

The correct answer is D: heat and pressure.

Explanation:
To turn an igneous rock or sedimentary rock into a metamorphic rock, heat and pressure are needed.

Igneous rocks are formed from molten magma that cools and solidifies. Sedimentary rocks are formed from the accumulation and lithification of sediments. However, in order for these rocks to transform into metamorphic rocks, they need to undergo a process called metamorphism.

Metamorphism occurs deep within the Earth's crust, where there is high temperature and pressure. These conditions cause the mineral composition and texture of rocks to change without melting them completely. The heat and pressure cause the existing minerals in the rocks to recrystallize and form new minerals, resulting in the formation of metamorphic rocks.

So, if you want to turn an igneous rock or sedimentary rock into a metamorphic rock, it requires heat and pressure.

Answer 3

The correct answer is D: heat and pressure. To turn an igneous rock or sedimentary rock into a metamorphic rock, it requires the application of heat and pressure. This process, known as metamorphism, typically occurs deep beneath the Earth's surface where the combination of heat and pressure causes the minerals in the rocks to recrystallize and change their original form.