Question 1

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 
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 2

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

Question 3

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

Question 4

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

Question 5

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

Question 6

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. 
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 7

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. 
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 8

The asthenosphere is

Accepted Answer

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

Question 9

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

Question 10

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

Question 11

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

Accepted Answer

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

Question 12

The Mohorovičić discontinuity coincides with the __________ boundary.

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

Earth's core is made up primarily of

Accepted Answer

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

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 
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

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

Question 17

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

Accepted Answer

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

Question 18

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

Question 19

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 
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 20

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. 
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.

Exam 1: The Earth System

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

Which of the following relationships is correct?

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

Geologic processes can take place of over times that last from

The largest jump in density within Earth is at the

In terms of its shape,Earth is

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

The asthenosphere is

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

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

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

The Mohorovičić discontinuity coincides with the __________ boundary.

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

Earth's core is made up primarily of

How old is Earth?

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

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

Continents float high because they are

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

Which of the following statements about convection is true?

Plate Tectonics: The Unifying Theory

Earth Materials: Minerals and Rocks

Igneous Rocks: Solids From Melts

Sedimentation: Rocks Formed by Surface Processes

Metamorphism: Alteration of Rocks by Temperature and Pressure

Deformation: Modification of Rocks by Folding and Fracturing

Clocks in Rocks: Timing the Geologic Period

Early History of the Terrestrial Planets

History of the Continents

Geobiology: Life Interacts With Earth

Volcanoes

Earthquakes

Exploring Earths Interior

The Climate System

Weathering,erosion,and Mass Wasting: Interactions Between the Climate and Plate Tectonic Systems

The Hydrologic Cycle and Groundwater

Stream Transport: From Mountains to Oceans

Winds and Deserts

Coastlines and Ocean Basins

Glaciers: the Work of Ice

Landscapes: Tectonic and Climate Interaction

The Human Impact of Earths Environment

Filters

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