The process that changes the grain size of a metamorphic rock is C. Recrystallization.

Here's a step-by-step explanation:

1. Metamorphic rocks are formed from the transformation of existing rock types in a process called metamorphism, which means "change in form".

2. This process happens under the earth's surface where the rocks are subjected to high temperatures and pressures.

3. The process of recrystallization occurs when these rocks are heated. The heat causes the minerals in the rock to become unstable and start to rearrange themselves.

4. As the minerals rearrange, they often form new minerals that are stable at the higher temperatures. This process can cause the grains in the rock to grow in size, hence changing the grain size of the rock.

5. Therefore, the correct answer is C. Recrystallization.

Question

The process that changes the grain size of a metamorphic rock is C. Recrystallization.

Here's a step-by-step explanation:

1. Metamorphic rocks are formed from the transformation of existing rock types in a process called metamorphism, which means "change in form".

2. This process happens under the earth's surface where the rocks are subjected to high temperatures and pressures.

3. The process of recrystallization occurs when these rocks are heated. The heat causes the minerals in the rock to become unstable and start to rearrange themselves.

4. As the minerals rearrange, they often form new minerals that are stable at the higher temperatures. This process can cause the grains in the rock to grow in size, hence changing the grain size of the rock.

5. Therefore, the correct answer is C. Recrystallization.

Knowee AI · Accepted Answer

The process that changes the grain size of a metamorphic rock is C. Recrystallization.

Here's a step-by-step explanation:

1. Metamorphic rocks are formed from the transformation of existing rock types in a process called metamorphism, which means "change in form".

2. This process happens under the earth's surface where the rocks are subjected to high temperatures and pressures.

3. The process of recrystallization occurs when these rocks are heated. The heat causes the minerals in the rock to become unstable and start to rearrange themselves.

4. As the minerals rearrange, they often form new minerals that are stable at the higher temperatures. This process can cause the grains in the rock to grow in size, hence changing the grain size of the rock.

5. Therefore, the correct answer is C. Recrystallization.

Which process changes the grain size of a metamorphic rock?A.FoliationB.CompactionC.RecrystallizationD.Lithification

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