Question

1. choose the correct answer.

__ usually takes place in small areas, only as far as fluids and heat from magma or lava can reach. __ takes place in very large areas.

contact metamorphism; regional metamorphism

regional metamorphism; contact metamorphism

1. choose the correct answer.

how can metamorphic rocks be identified? explain.

by their appearance; because some metamorphic rock has a striped pattern

by their hardness; because metamorphic rock is extremely hard

by their color; because all metamorphic rock is white

by their size; because metamorphic rock is very small

1. choose the correct answer.

foliated means ____.

scrubbed

containing iron

leaflike

foil - like

Explanation:

Question 9

Contact metamorphism occurs in small areas influenced by magma/lava fluids and heat. Regional metamorphism occurs over large areas due to tectonic forces. So the first blank is Contact metamorphism, the second is Regional metamorphism.

Metamorphic rocks can have a foliated (striped) pattern from mineral alignment. Hardness isn't unique (e.g., sedimentary rocks can be hard), color varies (not all white), and size isn't a defining feature. So the correct option is about appearance with the striped pattern explanation.

"Foliated" in metamorphic rocks refers to a texture with layers or bands, like foil - like (thin, sheet - like layers). "Scrubbed" and "containing iron" don't relate, and "leaflike" is less accurate than "foil - like" for the layered texture.

Answer:

A. Contact metamorphism; Regional metamorphism

Question 10