Question 1

Igneous rocks are classified on the basis of what two main characteristics?

Accepted Answer

texture an

Question 2

Glassy igneous rocks form when magma cools too fast for mineral grains to grow.

Accepted Answer

A) True 
 B)False

Question 3

A porphyritic texture where large crystals are embedded in a matrix of small crystal may form when ________.

Accepted Answer

A) climate change causes crystals to cool at different rates 
B) crystals of different compositions cool at different rates 
C) crystals of different compositions grow to different sizes 
D) a magma that has partially crystallized slowly moves to a different location where it then cools rapidly. 
A) climate change causes crystals to cool at different rates 
B) crystals of different compositions cool at different rates 
C) crystals of different compositions grow to different sizes 
D) a magma that has partially crystallized slowly moves to a different location where it then cools rapidly.

Question 4

Confining pressure is where ________.

Accepted Answer

A) forces are applied equally in all directions 
B) forces are applied from the top and the bottom equally 
C) pressure is applied in a cubic region 
D) pressure is parallel to the bedding planes 
A) forces are applied equally in all directions 
B) forces are applied from the top and the bottom equally 
C) pressure is applied in a cubic region 
D) pressure is parallel to the bedding planes

Question 5

Compaction would probably be most significant as a lithification process for ________.

Accepted Answer

A) shale 
B) sandstone 
C) conglomerate 
D) breccia 
A) shale 
B) sandstone 
C) conglomerate 
D) breccia

Question 6

Most of the energy and mineral resources we use are renewable.

Accepted Answer

A) True 
 B)False

Question 7

In general,recrystallization tends to produce larger crystals.

Accepted Answer

A) True 
 B)False

Question 8

What is the difference between "magma" and "lava"?

Accepted Answer

A) Magma is formed deep in the Earth and lava forms near the surface of the Earth. 
B) It is just a name change,and lava is what magma is called if it reaches the surface of the Earth. 
C) Magma makes igneous rocks and lava forms volcanoes. 
D) Magma is less dense than lava. 
A) Magma is formed deep in the Earth and lava forms near the surface of the Earth. 
B) It is just a name change,and lava is what magma is called if it reaches the surface of the Earth. 
C) Magma makes igneous rocks and lava forms volcanoes. 
D) Magma is less dense than lava.

Question 9

Magma is currently forming beneath the Rockies.

Accepted Answer

A) True 
 B)False

Question 10

The low grade metamorphism of shale produces ________.

Accepted Answer

A) marble 
B) schist 
C) gneiss 
D) slate 
A) marble 
B) schist 
C) gneiss 
D) slate

Question 11

Chemical sedimentary rocks form from materials ________.

Accepted Answer

A) carried in solution 
B) too fine to see without a microscope 
C) that form weak bonds with oxygen 
D) all of the above 
A) carried in solution 
B) too fine to see without a microscope 
C) that form weak bonds with oxygen 
D) all of the above

Question 12

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.
-granite basalt diorite gabbro

Accepted Answer

The answer of Examine the words and/or phrases for each...

Question 13

Compaction is most significant as a lithification process for sedimentary rocks composed of sand-sized particles.

Accepted Answer

A) True 
 B)False

Question 14

The very large crystals of quartz,feldspar,and muscovite found in pegmatites form from ________.

Accepted Answer

A) the early crystallizing parts of a magma 
B) the final crystallizing parts of a magma 
C) the middle crystallizing parts of a magma 
D) all of the above 
A) the early crystallizing parts of a magma 
B) the final crystallizing parts of a magma 
C) the middle crystallizing parts of a magma 
D) all of the above

Question 15

The common rock produced by the metamorphism of limestone is ________.

Accepted Answer

A) marble 
B) mica schist 
C) phyllite 
D) gneiss 
A) marble 
B) mica schist 
C) phyllite 
D) gneiss

Question 16

For a geologist,the most important characteristic of a sedimentary rock is its ________.

Accepted Answer

A) texture 
B) composition 
C) layering 
D) lithology 
A) texture 
B) composition 
C) layering 
D) lithology

Question 17

In an area where the temperature increase with depth averages 20°C per kilometer,the temperature at a depth of 5 kilometers would be ________.

Accepted Answer

A) 100°C 
B) 200°C 
C) 50°C 
D) 20°C 
A) 100°C 
B) 200°C 
C) 50°C 
D) 20°C

Question 18

Igneous rocks with an andesitic composition ________.

Accepted Answer

A) are denser than basaltic compositional rocks 
B) make up most of the sea floor 
C) are denser than granitic compositional rocks 
D) are found primarily in continental interiors 
A) are denser than basaltic compositional rocks 
B) make up most of the sea floor 
C) are denser than granitic compositional rocks 
D) are found primarily in continental interiors

Question 19

Which of the following changes may occur during metamorphism?

Accepted Answer

A) Certain minerals may recrystallize. 
B) The rock becomes more compact. 
C) Crystals may grow larger. 
D) all of the above 
A) Certain minerals may recrystallize. 
B) The rock becomes more compact. 
C) Crystals may grow larger. 
D) all of the above

Question 20

Sedimentary rocks comprise approximately ________ percent of Earth's outermost 10 miles.

Accepted Answer

A) 5 
B) 15 
C) 30 
D) 50 
A) 5 
B) 15 
C) 30 
D) 50

Exam 3: Rocks: Materials of the Solid Earth

Igneous rocks are classified on the basis of what two main characteristics?

Glassy igneous rocks form when magma cools too fast for mineral grains to grow.

A porphyritic texture where large crystals are embedded in a matrix of small crystal may form when ________.

Confining pressure is where ________.

Compaction would probably be most significant as a lithification process for ________.

Most of the energy and mineral resources we use are renewable.

In general,recrystallization tends to produce larger crystals.

What is the difference between "magma" and "lava"?

Magma is currently forming beneath the Rockies.

The low grade metamorphism of shale produces ________.

Chemical sedimentary rocks form from materials ________.

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern. -granite basalt diorite gabbro

Compaction is most significant as a lithification process for sedimentary rocks composed of sand-sized particles.

The very large crystals of quartz,feldspar,and muscovite found in pegmatites form from ________.

The common rock produced by the metamorphism of limestone is ________.

For a geologist,the most important characteristic of a sedimentary rock is its ________.

In an area where the temperature increase with depth averages 20°C per kilometer,the temperature at a depth of 5 kilometers would be ________.

Igneous rocks with an andesitic composition ________.

Which of the following changes may occur during metamorphism?

Sedimentary rocks comprise approximately ________ percent of Earth's outermost 10 miles.

Introduction to Earth Science

Matter and Minerals

Weathering, soil, and Mass Wasting

Running Water and Groundwater

Glaciers, deserts, and Wind

Plate Tectonics: a Scientific Revolution Unfolds

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

Crustal Deformation and Mountain Building

Geologic Time

Earths Evolution Through Geologic Time

The Ocean Floor

Ocean Water and Ocean Life

The Dynamic Ocean

The Atmosphere: Composition,structure,and Temperature

Moisture, clouds, and Precipitation

Air Pressure and Wind

Weather Patterns and Severe Weather

World Climates and Global Climate Change

Origin of Modern Astronomy

Touring Our Solar System

Light,astronomical Observations,and the Sun

Beyond Our Solar System

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