Question 1

Which of the following elements is more abundant in Earth's crust than in Earth as a whole?

Accepted Answer

A)  iron
B)  magnesium
C)  nickel
D)  silicon

Question 2

The Mohorovičić discontinuity coincides with the __________ boundary.

Accepted Answer

A)  mantle-core
B)  crust-mantle
C)  lithosphere-mantle
D)  inner core-outer core

Question 3

The largest jump in density within Earth is at the

Accepted Answer

A)  crust-mantle boundary.
B)  mantle-core boundary.
C)  upper mantle-lower mantle boundary.
D)  outer core-inner core boundary.

Question 4

Continents float high because they are

Accepted Answer

A)  denser than the mantle.
B)  less dense than the mantle.
C)  the same density as the mantle.
D)  thicker than the mantle.

Question 5

The ability of Earth's atmosphere to retain heat is referred to as the

Accepted Answer

A)  solar effect.
B)  radiation effect.
C)  biosphere effect.
D)  greenhouse effect.

Question 6

Change in the ground elevation of Earth's surface is called

Accepted Answer

A)  geodesy.
B)  topography.
C)  uniformitarianism.
D)  none of the above

Question 7

In terms of its shape,Earth is

Accepted Answer

A)  a perfect sphere.
B)  an imperfect sphere.
C)  flattened at the poles and bulging at the equator.
D)  bulging at the poles and flattened at the equator.

Question 8

The density of most rocks ranges from ___ to ___ g/cm3.

Accepted Answer

A)  0; 1
B)  1; 2
C)  3; 4
D)  5; 6

Question 9

The typical elevation of the land surface occurs within a range of _______ above sea level.

Accepted Answer

A)  0 to 20 km
B)  0 to 1 km
C)  0 to 10 km
D)  0 to 5 km

Question 10

"Deep time" refers to time measured in _______ of years.

Accepted Answer

A)  hundreds
B)  thousands
C)  millions
D)  billions

Question 11

Ninety percent of Earth is made up of which four elements?

Accepted Answer

A)  iron,oxygen,silicon,and magnesium
B)  oxygen,nitrogen,hydrogen,and silicon
C)  magnesium,aluminum,silicon,and oxygen
D)  silicon,calcium,aluminum,and iron

Question 12

Earth's core is made up primarily of

Accepted Answer

A)  iron.
B)  lead.
C)  oxygen.
D)  silicon.

Question 13

When did biology's Big Bang (evolutionary explosion) occur?

Accepted Answer

A)  approximately 65 million years ago
B)  approximately 2.2 billion years ago
C)  approximately 540 million years ago
D)  approximately 3.5 billion years ago

Question 14

The group of meteorites that is similar in composition to Earth's core is

Accepted Answer

A)  stony meteorites.
B)  high-density meteorites.
C)  iron-nickel meteorites.
D)  none of the above.

Question 15

How old is Earth?

Accepted Answer

A)  approximately 4.5 thousand years
B)  approximately 4.5 billion years
C)  approximately 4.5 million years
D)  approximately 4.5 trillion years

Question 16

Which of the following statements about convection is true?

Accepted Answer

A)  Heat is transferred from hot material to cool material without inducing a flow.
B)  Hot material flows upward and displaces cool material.
C)  Cool material flows upward and displaces hot material.
D)  Random circulation occurs.

Question 17

Which of the following relationships is correct?

Accepted Answer

A)  asthenosphere = crust
B)  lithosphere = crust
C)  asthenosphere = crust + upper mantle
D)  lithosphere = crust + upper mantle

Question 18

Which of the following statements regarding the scientific method is true?

Accepted Answer

A)  A hypothesis must be agreed upon by more than one scientist.
B)  A theory is a hypothesis that has withstood many scientific tests.
C)  A theory is proven to be true and therefore may not be discarded.
D)  A hypothesis cannot predict the outcome of scientific experiments.

Question 19

Geologic processes can take place of over times that last from

Accepted Answer

A)  seconds to billions of years.
B)  minutes to weeks.
C)  years to decades.
D)  seconds to centuries.

Question 20

The asthenosphere is

Accepted Answer

A)  cool and strong.
B)  cool and weak.
C)  hot and strong.
D)  hot and weak.

Exam 1: The Earth System

Geologic processes can take place of over times that last from

Correct AnswerverifiedShow Answer

Which of the following statements about convection is true?

Correct AnswerverifiedShow Answer

The ability of Earth's atmosphere to retain heat is referred to as the

Correct AnswerverifiedShow Answer

Continents float high because they are

Correct AnswerverifiedShow Answer

The typical elevation of the land surface occurs within a range of _______ above sea level.

Correct AnswerverifiedShow Answer

"Deep time" refers to time measured in _______ of years.

Correct AnswerverifiedShow Answer

In terms of its shape,Earth is

Correct AnswerverifiedShow Answer

The largest jump in density within Earth is at the

Correct AnswerverifiedShow Answer

Which of the following relationships is correct?

Correct AnswerverifiedShow Answer

When did biology's Big Bang (evolutionary explosion) occur?

Correct AnswerverifiedShow Answer

Which of the following statements regarding the scientific method is true?

Correct AnswerverifiedShow Answer

The asthenosphere is

Correct AnswerverifiedShow Answer

Earth's core is made up primarily of

Correct AnswerverifiedShow Answer

Change in the ground elevation of Earth's surface is called

Correct AnswerverifiedShow Answer

Ninety percent of Earth is made up of which four elements?

Correct AnswerverifiedShow Answer

Which of the following elements is more abundant in Earth's crust than in Earth as a whole?

Correct AnswerverifiedShow Answer

The density of most rocks ranges from ___ to ___ g/cm3.

Correct AnswerverifiedShow Answer

The group of meteorites that is similar in composition to Earth's core is

Correct AnswerverifiedShow Answer

The Mohorovičić discontinuity coincides with the __________ boundary.

Correct AnswerverifiedShow Answer

How old is Earth?

Correct AnswerverifiedShow Answer

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The density of most rocks ranges from _ to _ g/cm³.

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