Question 1

Why does ocean floor subduct under continents?

Accepted Answer

A) The ocean floor has a lower density and therefore sinks more easily. 
B) The ocean floor is made of felsic minerals and is heavier than continental material. 
C) The ocean floor is made of mafic material and is therefore denser than continental material. 
D) The weight of the continents is so great that they push the ocean floor material downward. 
A) The ocean floor has a lower density and therefore sinks more easily. 
B) The ocean floor is made of felsic minerals and is heavier than continental material. 
C) The ocean floor is made of mafic material and is therefore denser than continental material. 
D) The weight of the continents is so great that they push the ocean floor material downward. C

Question 2

Oceanic crust is denser than continental crust.

Accepted Answer

A) True 
 B)False  True

Question 3

From which of the following is knowledge of Earth's interior mostly derived?

Accepted Answer

A) Direct sampling of the interior using deep-test wells. 
B) Work in Earth's deepest caverns and caves. 
C) Indirect evidence involving the analysis of seismic waves. 
D) Historic and prehistoric records. 
A) Direct sampling of the interior using deep-test wells. 
B) Work in Earth's deepest caverns and caves. 
C) Indirect evidence involving the analysis of seismic waves. 
D) Historic and prehistoric records. C

Question 4

What is sedimentary rock formed from the combined processes of weathering,erosion,transportation,deposition,lithification,and compaction of rock fragments of other rocks?

Accepted Answer

A) Clastic. 
B) Biochemical. 
C) Organic. 
D) Chemical. 
A) Clastic. 
B) Biochemical. 
C) Organic. 
D) Chemical.

Question 5

The half-life of a radioactive isotope does not vary.

Accepted Answer

A) True 
 B)False

Question 6

Which best describes felsic igneous rock,such as granite and rhyolite?

Accepted Answer

A) These have dark coloration. 
B) These are not resistant to weathering. 
C) These have a high melting temperature. 
D) These are high in silicate minerals. 
A) These have dark coloration. 
B) These are not resistant to weathering. 
C) These have a high melting temperature. 
D) These are high in silicate minerals.

Question 7

Which is the continuous alteration of Earth materials from one rock type to another?

Accepted Answer

A) Geologic cycle. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle. 
A) Geologic cycle. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle.

Question 8

Convergent plate boundaries occur in areas of seafloor spreading.

Accepted Answer

A) True 
 B)False

Question 9

Just eight natural elements make up over 98% of Earth's crust by weight.

Accepted Answer

A) True 
 B)False

Question 10

On average,how is the thickness of oceanic crust compared to that of continental crust?

Accepted Answer

A) Ocean crust thickness is greater than continental crust. 
B) Ocean crust thickness is less than continental crust. 
C) Ocean crust thickness is the same as continental crust. 
A) Ocean crust thickness is greater than continental crust. 
B) Ocean crust thickness is less than continental crust. 
C) Ocean crust thickness is the same as continental crust.

Question 11

What type of rock forms from the solidification of molten material?

Accepted Answer

A) Sedimentary. 
B) Metamorphic. 
C) Igneous. 
D) Clastic. 
A) Sedimentary. 
B) Metamorphic. 
C) Igneous. 
D) Clastic.

Question 12

Consider the age of the sea floor.Which of the following is correct?

Accepted Answer

A) The age of the sea floor is the same in most areas of the ocean. 
B) The age of the sea floor does not follow a discernable pattern. 
C) The age of the sea floor increases with increasing distance from a mid-ocean ridge. 
D) The age of the sea floor increases with increasing distance from a trench. 
A) The age of the sea floor is the same in most areas of the ocean. 
B) The age of the sea floor does not follow a discernable pattern. 
C) The age of the sea floor increases with increasing distance from a mid-ocean ridge. 
D) The age of the sea floor increases with increasing distance from a trench.

Question 13

Which drives the endogenic processes of the rock cycle?

Accepted Answer

A) Atmospheric circulation. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle. 
A) Atmospheric circulation. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle.

Question 14

The deepest places in the ocean are those in which rifting occurs.

Accepted Answer

A) True 
 B)False

Question 15

Plate boundaries are associated with which of the following?

Accepted Answer

A) Earthquakes and volcanoes. 
B) chemical weathering. 
C) Sublimation. 
D) Drifting. 
A) Earthquakes and volcanoes. 
B) chemical weathering. 
C) Sublimation. 
D) Drifting.

Question 16

In terms of dating of specific rocks,structures,or landscapes,numerical age refers to which of the following?

Accepted Answer

A) The age of geological features based on isotopic dating techniques. 
B) The approximate age of geological features based on the period or epoch in which they occurred.For instance,noting a feature is from the Cretaceous. 
C) A range of numeric values in which a feature was likely formed and based on several lines of evidence,such as paleoclimatic and paleobotanical reconstructions. 
D) The age of one feature with respect to another within a sequence of events and deduced from the positions of rock strata above and below one another. 
A) The age of geological features based on isotopic dating techniques. 
B) The approximate age of geological features based on the period or epoch in which they occurred.For instance,noting a feature is from the Cretaceous. 
C) A range of numeric values in which a feature was likely formed and based on several lines of evidence,such as paleoclimatic and paleobotanical reconstructions. 
D) The age of one feature with respect to another within a sequence of events and deduced from the positions of rock strata above and below one another.

Question 17

Which of the following drives the exogenic processes of the rock cycle?

Accepted Answer

A) Atmospheric circulation. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle. 
A) Atmospheric circulation. 
B) Rock cycle. 
C) Hydrologic cycle. 
D) Tectonic cycle.

Question 18

Diagram and label the three types of plate boundaries.

Accepted Answer

Convergent boundaries occur in areas of

Question 19

Which are associated with divergent plate boundaries?

Accepted Answer

A) Sea-floor spreading centers. 
B) Collision zones between plates. 
C) Transform plate boundaries. 
D) All plate boundaries. 
A) Sea-floor spreading centers. 
B) Collision zones between plates. 
C) Transform plate boundaries. 
D) All plate boundaries.

Question 20

Which are the names that contrast molten rock beneath Earth's surface with molten rock on Earth's surface?

Accepted Answer

A) Lava; magma. 
B) Intrusive; extrusive. 
C) Magma; lava. 
D) Extrusive; intrusive. 
A) Lava; magma. 
B) Intrusive; extrusive. 
C) Magma; lava. 
D) Extrusive; intrusive.

Why does ocean floor subduct under continents?

Oceanic crust is denser than continental crust.

From which of the following is knowledge of Earth's interior mostly derived?

What is sedimentary rock formed from the combined processes of weathering,erosion,transportation,deposition,lithification,and compaction of rock fragments of other rocks?

The half-life of a radioactive isotope does not vary.

Which best describes felsic igneous rock,such as granite and rhyolite?

Which is the continuous alteration of Earth materials from one rock type to another?

Convergent plate boundaries occur in areas of seafloor spreading.

Just eight natural elements make up over 98% of Earth's crust by weight.

On average,how is the thickness of oceanic crust compared to that of continental crust?

What type of rock forms from the solidification of molten material?

Consider the age of the sea floor.Which of the following is correct?

Which drives the endogenic processes of the rock cycle?

The deepest places in the ocean are those in which rifting occurs.

Plate boundaries are associated with which of the following?

In terms of dating of specific rocks,structures,or landscapes,numerical age refers to which of the following?

Which of the following drives the exogenic processes of the rock cycle?

Diagram and label the three types of plate boundaries.

Which are associated with divergent plate boundaries?

Which are the names that contrast molten rock beneath Earth's surface with molten rock on Earth's surface?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters

Exam 12: The Dynamic Planet

Why does ocean floor subduct under continents?

Oceanic crust is denser than continental crust.

From which of the following is knowledge of Earth's interior mostly derived?

What is sedimentary rock formed from the combined processes of weathering,erosion,transportation,deposition,lithification,and compaction of rock fragments of other rocks?

The half-life of a radioactive isotope does not vary.

Which best describes felsic igneous rock,such as granite and rhyolite?

Which is the continuous alteration of Earth materials from one rock type to another?

Convergent plate boundaries occur in areas of seafloor spreading.

Just eight natural elements make up over 98% of Earth's crust by weight.

On average,how is the thickness of oceanic crust compared to that of continental crust?

What type of rock forms from the solidification of molten material?

Consider the age of the sea floor.Which of the following is correct?

Which drives the endogenic processes of the rock cycle?

The deepest places in the ocean are those in which rifting occurs.

Plate boundaries are associated with which of the following?

In terms of dating of specific rocks,structures,or landscapes,numerical age refers to which of the following?

Which of the following drives the exogenic processes of the rock cycle?

Diagram and label the three types of plate boundaries.

Which are associated with divergent plate boundaries?

Which are the names that contrast molten rock beneath Earth's surface with molten rock on Earth's surface?

Essentials of Geography

Solar Energy to Earth and the Seasons

Earths Modern Atmosphere

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters