Which phrases apply to metamorphic rock formation? Check all that apply.

Question

form from existing rocks
form without melting
appear foliated or non-foliated
form from liquid rock
form from deposition
require heat and pressure to form

Answer 1

The phrases that apply to metamorphic rock formation are:

1. form from existing rocks - Metamorphic rocks are formed from pre-existing igneous, sedimentary, or other metamorphic rocks.
2. form without melting - Metamorphic rocks form through recrystallization and other processes that do not involve melting.
3. appear foliated or non-foliated - Foliation refers to the layered appearance of some metamorphic rocks, while others can be non-foliated.
4. require heat and pressure to form - The formation of metamorphic rocks typically involves high temperatures and pressures deep within the Earth's crust.

The phrases that do NOT apply are:

• form from liquid rock - This phrase applies to igneous rocks formed from molten rock (magma or lava).
• form from deposition - This phrase applies to sedimentary rocks, which are formed from the accumulation and compaction of sediment.

So, the applicable phrases are:

• form from existing rocks
• form without melting
• appear foliated or non-foliated
• require heat and pressure to form