Question 1

The Earth's outer, cool, rigid shell is broken into several segments called __________ __________.

Accepted Answer

tectonic plates

Question 2

Oceans cover __________ percent of the Earth's surface.
A) 0.7
B) 7
C) 17
D) 71

Accepted Answer

Oceans cover 71% of the Earth's surface.

Question 3

A __________ is any combination of interrelated, interacting components.

Accepted Answer

system

Question 4

At its center, Earth's temperature is about __________.

Accepted Answer

The answer of At its center, Earth's temperature is about...

Question 5

The atmosphere consists mainly of __________.
A) nitrogen and argon
B) nitrogen and oxygen
C) oxygen and carbon dioxide
D) carbon dioxide and argon

Accepted Answer

According to scientific studies, the Earth's atmosphere is composed mainly of nitrogen (about 78%) and oxygen (about 21%). Therefore, choice B (nitrogen and oxygen) is the best answer. Choices A (nitrogen and argon), C (oxygen and carbon dioxide), and D (carbon dioxide and argon) are not accurate because they do not reflect the dominant composition of the Earth's atmosphere.

Question 6

The rigid, outer part of Earth, including the crust and the uppermost mantle, is called the __________.
A) atmosphere
B) geosphere
C) lithosphere
D) hydrosphere

Accepted Answer

The term "geosphere" refers to the solid, inorganic portions of Earth, including the crust, mantle, and core. The lithosphere is the rigid, outermost layer of the geosphere, consisting of the crust and uppermost portion of the mantle. The atmosphere refers to the gases that surround Earth, while the hydrosphere includes all of Earth's water, including oceans, rivers, and groundwater.

Question 7

Water frozen in glaciers is part of Earth's __________.
A) geosphere
B) atmosphere
C) hydrosphere
D) biosphere

Accepted Answer

The hydrosphere refers to all of the water on Earth, including the water found in glaciers. The geosphere refers to the solid parts of the Earth, the atmosphere refers to the layer of gases surrounding the Earth, and the biosphere refers to all living organisms on Earth.

Question 8

Liquid freshwater amounts to about __________ percent of Earth's total water.
A) 0.64
B) 6.4
C) 16.4
D) 60.4

Accepted Answer

Liquid freshwater amounts to about 0.64 percent of Earth's total water, with the vast majority of the planet's water being saltwater in the oceans.

Question 9

The central portion of the Earth, called the __________, contains a solid layer surrounded by a molten layer.

Accepted Answer

The answer of The central portion of the Earth, called...

Question 10

The __________ is a mixture of gases, mostly nitrogen and oxygen.

Accepted Answer

The answer of The __________ is a mixture of gases,...

Question 11

During the formation of planets, gravitational forces caused small rocky spheres to collide and coalesce to form mini-planets called __________.

Accepted Answer

The answer of During the formation of planets, gravitational forces...

Question 12

The __________ contains all of Earth's water.

Accepted Answer

The answer of The __________ contains all of Earth's water....

Question 13

Earth's core consists mostly of __________.
A) iron and nickel
B) frozen water
C) solid rock
D) gas

Accepted Answer

According to current scientific understanding, the Earth's core is believed to be composed primarily of iron (85%) and nickel (10%), with small amounts of other elements.

Question 14

__________ is a principle stating that the geologic processes operating today also operated in the past.

Accepted Answer

The answer of __________ is a principle stating that the...

Question 15

The increased carbon dioxide level has raised the Earth's average temperature by __________°C since the Industrial Revolution.

Accepted Answer

The answer of The increased carbon dioxide level has raised...

Question 16

A __________ __________ occurs when a small initial perturbation affects another component of the system, which amplifies the original effect.

Accepted Answer

The answer of A __________ __________ occurs when a small...

Question 17

The Earth's core is part of the __________.
A) geosphere
B) atmosphere
C) hydrosphere
D) biosphere

Accepted Answer

The geosphere refers to the solid part of the Earth, including the crust, mantle, and core. The Earth's core is located in the geosphere. The atmosphere refers to the layer of gases that surround the Earth, the hydrosphere refers to all the water on the planet, and the biosphere refers to all living things on Earth.

Question 18

The __________ of the Earth is a thin, rigid surface veneer that lies above the mantle.

Accepted Answer

The answer of The __________ of the Earth is a...

Question 19

__________ is a principle that states that occasional huge catastrophes alter the course of Earth history.

Accepted Answer

The answer of __________ is a principle that states that...

Question 20

Oceans contain __________ percent of the Earth's water.
A) 2.5
B) 15
C) 65
D) 97.5

Accepted Answer

The oceans contain approximately 97.5% of the Earth's water, making them the largest reservoir of water on the planet. The remaining 2.5% is freshwater, found in glaciers, rivers, lakes, and underground aquifers.

Quiz 1: Earth Systems

The Earth's outer, cool, rigid shell is broken into several segments called .

Oceans cover __________ percent of the Earth's surface.

A __________ is any combination of interrelated, interacting components.

At its center, Earth's temperature is about __________.

The atmosphere consists mainly of __________.

The rigid, outer part of Earth, including the crust and the uppermost mantle, is called the __________.

Water frozen in glaciers is part of Earth's __________.

Liquid freshwater amounts to about __________ percent of Earth's total water.

The central portion of the Earth, called the __________, contains a solid layer surrounded by a molten layer.

The __________ is a mixture of gases, mostly nitrogen and oxygen.

During the formation of planets, gravitational forces caused small rocky spheres to collide and coalesce to form mini-planets called __________.

The __________ contains all of Earth's water.

Earth's core consists mostly of __________.

__________ is a principle stating that the geologic processes operating today also operated in the past.

The increased carbon dioxide level has raised the Earth's average temperature by __________°C since the Industrial Revolution.

A occurs when a small initial perturbation affects another component of the system, which amplifies the original effect.

The Earth's core is part of the __________.

The __________ of the Earth is a thin, rigid surface veneer that lies above the mantle.

__________ is a principle that states that occasional huge catastrophes alter the course of Earth history.

Oceans contain __________ percent of the Earth's water.