Which statement best describes how limestone is changed into marble?

A.
Heat and pressure changes the characteristics of limestone.

B.
Heat and pressure cause small pieces of rock to stick together.

C.
Flowing water breaks off the rough edges of the rock surface.

D.
Acidic water dissolves limestone into its component parts.

2.
A student thinks that granite must be a metamorphic or igneous rock. Which fact from the passage indicates that granite is an igneous rock?

A.
Granite has large grains of different colors.

B.
Granite forms under Earth’s surface.

C.
Granite forms from liquid rock that cools.

D.
Granite is made from shale and sandstone.

3.
A student wonders if shale and sandstone can be classified as igneous, metamorphic, or sedimentary. Which information will best help the students answer this question?

A.
the size and alignment of the shale and sandstone crystals

B.
the types of minerals found in shale and sandstone

C.
the places where shale and sandstone are found

D.
the processes that cause shale and sandstone to form

4.
A piece of granite is exposed to sharp objects and pollution. Over time, much of the rock is reduced to tiny flakes. Large rocks press down on the flakes. Which statement best explains how this process could change the granite into a new rock?

A.
The pressure could cause the granite flakes to melt, helping to create new sedimentary rock.

B.
The pressure could cause the granite flakes to dissolve and re-form, helping to create new igneous rock.

C.
The pressure could cause the granite flakes to stick together, helping to create new sedimentary rock.

D.
The pressure could cause the granite flakes to undergo chemical change, helping to create new igneous rock.

C.

The pressure could cause the granite flakes to stick together, helping to create new sedimentary rock.