Ch 1 Section 2 A View Of The Earth

2.

The theory of plate tectonics helps scientists explain _________________ .

How ocean currents move over Earth's surface
Why hurricanes occur
How earthquakes and volcanic eruptions occur
Why Earth's core is less dense than the mantle

Correct Answer

A. How earthquakes and volcanic eruptions occur

Explanation

The theory of plate tectonics helps scientists explain how earthquakes and volcanic eruptions occur. Plate tectonics is the scientific theory that describes the movement and interaction of Earth's lithospheric plates. It explains that the Earth's lithosphere is divided into several large plates that float on the semi-fluid asthenosphere. These plates are constantly moving and interacting with each other at plate boundaries. When two plates collide, separate, or slide past each other, it can cause intense pressure and stress, leading to earthquakes and volcanic eruptions. Therefore, the theory of plate tectonics provides a framework for understanding the occurrence of these geological events.

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3.

Based upon what you see in this diagram of the crusts of the geosphere. Choose the BEST answer that is true.

Oceanic crust is thicker than continental crust
Continental crust is thicker than oceanic crust
Oceanics crust is much dryer that continental crust

Correct Answer

A. Continental crust is thicker than oceanic crust

Explanation

The correct answer is that continental crust is thicker than oceanic crust. This can be inferred from the diagram of the crusts of the geosphere, which likely shows that the continental crust is thicker compared to the oceanic crust.

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4.

What are the three main parts of the geosphere?

Atmosphere, crust, core
Crust, mantle, core
Lithosphere, mantle, core
Asthenosphere, lithosphere, atmosphere

Correct Answer

A. Crust, mantle, core

Explanation

The geosphere refers to the solid part of the Earth, and it is made up of three main parts: the crust, mantle, and core. The crust is the outermost layer and is divided into continental and oceanic crust. The mantle is the middle layer and is composed of hot, semi-solid rock. The core is the innermost layer and is made up of a solid inner core and a liquid outer core. These three parts work together to form the structure of the Earth.

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5.

Which of Earth's spheres includes the oceans, groundwater, lakes and glaciers?

The atmosphere
The hydrosphere
The biosphere
The geosphere

Correct Answer

A. The hydrosphere

Explanation

The hydrosphere includes all of Earth's water, including the oceans, groundwater, lakes, and glaciers. It is one of the Earth's spheres that plays a crucial role in supporting life and regulating the planet's climate. The hydrosphere interacts with other spheres, such as the atmosphere and biosphere, through processes like evaporation, precipitation, and water cycle.

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6.

Earth's four major spheres are the ______________________ .

Hydrosphere, atmosphere, geosphere, and biosphere
Hydrosphere, atmosphere, lithosphere, biosphere
Hydrosphere, geosphere, lithosphere, and asthenosphere

Correct Answer

A. Hydrosphere, atmosphere, geosphere, and biosphere

Explanation

The Earth's four major spheres are the hydrosphere, atmosphere, geosphere, and biosphere. The hydrosphere refers to all the water on Earth, including oceans, lakes, rivers, and groundwater. The atmosphere is the layer of gases surrounding the Earth, which includes oxygen, nitrogen, and other gases. The geosphere includes the solid Earth, such as the rocks, minerals, and landforms. The biosphere is the part of Earth where life exists, including all living organisms and their interactions with the other spheres.

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7.

What is the driving force for the movement of the lithospheric plates?

Heat from the sun
Unequal distribution of heat within Earth
Heat in the atmosphere
Unequal distribution of heat in the ocean

Correct Answer

A. Unequal distribution of heat within Earth

Explanation

The driving force for the movement of the lithospheric plates is the unequal distribution of heat within Earth. This is because the heat generated from the Earth's core causes convection currents in the mantle, which in turn drives the movement of the lithospheric plates. The areas with higher heat levels rise, while the areas with lower heat levels sink, creating a continuous cycle of movement. This movement of the plates is responsible for various geological phenomena such as earthquakes, volcanic activity, and the formation of mountains.

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8.

Glaciers would be a part of which of the following spheres?

Atmosphere
Geosphere
Hydrosphere

Correct Answer

A. Hydrosphere

Explanation

Glaciers would be a part of the hydrosphere because they are large bodies of ice that form on land and are made up of frozen water. The hydrosphere refers to all the water on Earth, including oceans, lakes, rivers, and ice. Glaciers play a significant role in the water cycle as they store and release water over time, contributing to the overall water supply in the hydrosphere.

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9.

The portion of Earth that supports the existence of living things is called the __________________.

Ecosystem
Habitat
Biosphere
Niche

Correct Answer

A. Biosphere

Explanation

The biosphere refers to the portion of Earth that supports the existence of living things. It includes all the ecosystems and habitats where organisms can live and thrive. This term encompasses the interactions between living organisms and their physical environment, such as the atmosphere, hydrosphere, and lithosphere. The biosphere is crucial for sustaining life on Earth as it provides the necessary conditions and resources for organisms to survive and reproduce.

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10.

Take a look at the following diagram of the Earth's Crust. Based upon what you see, what are the two types of Crust in the geosphere?

Oceanic crust
Atmospheric crust
Continental crust
Seafloor spreading crust

Correct Answer(s)

A. Oceanic crust
A. Continental crust

Explanation

The diagram of the Earth's Crust shows two distinct types of crust: oceanic crust and continental crust. Oceanic crust is found beneath the ocean basins and is generally thinner and denser than continental crust. Continental crust, on the other hand, forms the continents and is thicker and less dense than oceanic crust. These two types of crust have different compositions and characteristics, which contribute to the diversity of the Earth's geosphere.

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Ch 1 Section 2 A View Of The Earth

The theory of ________________ provides a model to explain how volcanoes and earthquakes occur and how continents move.

Quiz Preview

The theory of plate tectonics helps scientists explain _________________ .

Based upon what you see in this diagram of the crusts of the geosphere. Choose the BEST answer that is true.

What are the three main parts of the geosphere?

Which of Earth's spheres includes the oceans, groundwater, lakes and glaciers?

Earth's four major spheres are the ______________________ .

What is the driving force for the movement of the lithospheric plates?

Glaciers would be a part of which of the following spheres?

The portion of Earth that supports the existence of living things is called the __________________.

Take a look at the following diagram of the Earth's Crust. Based upon what you see, what are the two types of Crust in the geosphere?