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Exam 22: Minerals, Rocks, and Volcanoes

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Question 31

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The Mohs scale is based on how many minerals?

A) 8
B) 10
C) 12
D) 15

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Question 32

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Rocks formed from consolidated sediment deposited in layers are known as ______________ rocks.

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Question 33

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The process of transforming sediment into sedimentary rock is called

The term cleavage refers to the tendency of some minerals to

Laccoliths and sills are examples of ______________ plutons.

The brilliancy of a gem is a function of its index of ______________.

Orthoclase and plagioclase are the two main types of

Gas, lava, and ______________ are the three general products emitted during a volcanic eruption.

The two elements silicon and oxygen, taken together, make up about what percent of Earth's crust by mass?

Sediments are classified according to the source of their constituents into two main groups. One is chemical. What is the other?

Which of the following is not one of the major types of metamorphism?

The element that is most abundant in Earth's crust is

The largest plutons are called

The study of rocks is called

The hardest mineral on the Mohs hardness scale is named ______________.

Molten rock material on Earth's surface is called

Which of the following scientists is generally designated "the father of geology"?

A(n) ______________ is the surface expression of magma that originates in the asthenosphere and deeper.

The physical characteristic that is used to distinguish intrusive igneous rocks from extrusive igneous rocks is _____________.

Intrusive igneous rock formations that cut more or less vertically across older formations are said to be ______________.