True or False

Silicate minerals make up nearly a quarter of the minerals in Earth’s crust.

False

(They make up nearly 90% of the earth's crust)

True or False

Sedimentary rocks were formed from particles or dissolved materials from older rocks.

True

True or False

Very rapid cooling of magma produces glass rather than a mineral.

True

True or False

Sandstone is sand that has been consolidated into a solid mass.

True

True or False

Igneous, sedimentary, and metamorphic rocks have undergone little change since Earth formed.

False

The most common rock type in Earth’s crust is:

a) Igneous

b) Sedimentary

c) Metamorphic

d) Clastic

A) Igneous

The elements that occur most frequently in minerals found in the crust are:

a) Carbon and Oxygen

b) Oxygen and Iron

c) Magnesium and Iron

d) Silicon and Oxygen

D) Silicon and Oxygen

The formation of which of the following rocks helps remove CO2 from the atmosphere?

a) granite

b) schist

c) limestone

d) sandstone

C) Limestone

The rock cycle is a concept that predicts which of the following will undergo ongoing, constant change?

a) Igneous

b) Sedimentary

c) Metamorphic

d) All of the above

D) All of the above

About how many minerals are common in Earth’s crust?

a) 10

b) 20

c) 100

d) 2,000

B) 20