Earth Science Chapter 5 Quiz

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Questions and Answers

Which sphere is primarily responsible for providing breathable air and protection from harmful solar radiation?

  • Atmosphere (correct)
  • Lithosphere
  • Biosphere
  • Hydrosphere

Which of the following is the most accurate description of the lithosphere's composition?

  • The gaseous envelope surrounding the Earth.
  • All living organisms on Earth and their interactions.
  • The solid outer layer of Earth, including mountains, plains, and plateaus. (correct)
  • The totality of Earth's water, including oceans, lakes and rivers.

Which of the following events demonstrates interaction between the atmosphere and the hydrosphere?

  • Formation of mountain ranges due to tectonic plate movement.
  • Volcanic eruption releasing lava onto the Earth's surface.
  • Heavy rainfall causing a river to overflow. (correct)
  • The decomposition of organic matter in the soil.

Which of the following best describes the role of the biosphere?

<p>The sphere encompassing all living things on Earth. (C)</p> Signup and view all the answers

What is the primary distinction between the lithosphere and the other Earth spheres?

<p>It is the Earth's solid, rocky outer layer. (B)</p> Signup and view all the answers

Which geological process is LEAST associated with the lithosphere?

<p>Oceanic tide creation (B)</p> Signup and view all the answers

What contributes most to the variance in the lithosphere's thickness?

<p>The difference between continental and oceanic crust (D)</p> Signup and view all the answers

If an area measures 60 km from the surface of the Earth, what would it most likely consist of?

<p>A mixture of the Earth's crust and upper mantle (C)</p> Signup and view all the answers

From the options below, which is a characteristic of the lithosphere?

<p>Dynamic and constantly changing due to geological processes (D)</p> Signup and view all the answers

What does the term 'lithos' represent in the context of the lithosphere?

<p>Stone (C)</p> Signup and view all the answers

If a scientist were to drill a borehole from the surface of the Earth to the core, which material would they encounter first?

<p>A thin layer of either oceanic or continental crust (C)</p> Signup and view all the answers

Which statement accurately compares the physical properties of Earth's layers?

<p>The inner core is solid, while the outer core is liquid, generating Earth's magnetic field. (D)</p> Signup and view all the answers

Considering the volume percentages of Earth's layers, which conclusion can be drawn?

<p>The mantle makes up the majority of Earth's volume. (A)</p> Signup and view all the answers

What can be inferred about the origin of magma based on the description of Earth's interior?

<p>Magma is generated within the mantle, composed of partially melted rocks. (C)</p> Signup and view all the answers

How would the density change as you move from the crust to the core?

<p>Density would generally increase due to changes in composition and pressure with depth. (D)</p> Signup and view all the answers

Which atmospheric layer contains the ozone layer?

<p>Stratosphere (C)</p> Signup and view all the answers

What primarily causes the visible condensation trails (contrails) left by airplanes in the sky?

<p>The condensation of water vapor from jet engine exhaust in the cold air. (A)</p> Signup and view all the answers

Which process is responsible for transforming water from its liquid state in the ocean to a gaseous state in the atmosphere?

<p>Evaporation (A)</p> Signup and view all the answers

What is the approximate height to which the atmosphere extends above Earth?

<p>500 km (C)</p> Signup and view all the answers

What is the primary mechanism, within the water cycle, by which heat is transferred between the hydrosphere, atmosphere, and continents?

<p>The evaporation-condensation cycle (A)</p> Signup and view all the answers

Which of the following is a direct consequence of water transitioning from a gaseous state to a liquid state within the atmosphere?

<p>Formation of clouds (B)</p> Signup and view all the answers

Which layer of the atmosphere is closest to the Earth's surface?

<p>Troposphere (C)</p> Signup and view all the answers

What critical role does the presence of water in the atmosphere play regarding solar radiation?

<p>It absorbs and scatters harmful UV rays. (B)</p> Signup and view all the answers

Which of the following is a characteristic of the troposphere?

<p>It is the densest layer, containing a significant proportion of the atmosphere's mass. (B)</p> Signup and view all the answers

What is the initial energy source that drives the process of evaporation in the water cycle?

<p>Solar energy (D)</p> Signup and view all the answers

Which geological process is primarily responsible for the formation of valleys?

<p>Erosion by flowing water carving through mountainous terrain (C)</p> Signup and view all the answers

What is the key differentiating characteristic between a plateau and a plain?

<p>The elevation relative to the surrounding areas. (A)</p> Signup and view all the answers

Which of the following best describes the origin of many lakes in northern Quebec?

<p>Filling of cavities left by melting glaciers after the last ice age. (D)</p> Signup and view all the answers

What is the primary geological force behind the creation of mountain ranges?

<p>Folding of the Earth's crust due to colliding tectonic plates. (C)</p> Signup and view all the answers

How do shields differ from typical plateaus?

<p>Shields are dome-shaped, while plateaus are relatively flat. (C)</p> Signup and view all the answers

Which of the following statements accurately describes the distribution of water within the hydrosphere?

<p>Saltwater makes up the vast majority of the hydrosphere, with only a small fraction available as accessible surface freshwater. (D)</p> Signup and view all the answers

Which of the following statements accurately describes the composition and state of Earth's core?

<p>The core is composed of two parts, a solid inner core and a liquid outer core, both primarily made of iron and nickel. (B)</p> Signup and view all the answers

If the total volume of water on Earth is represented by 'X', which expression best approximates the volume of readily accessible surface freshwater?

<p>0.0002X (C)</p> Signup and view all the answers

How would a significant increase in global temperatures most directly impact the distribution of water within the hydrosphere, assuming no change in the total amount of water?

<p>Decrease the volume of water stored in glaciers and ice caps while increasing the amount of water vapor in the atmosphere. (A)</p> Signup and view all the answers

At approximately what depth within the Earth does the temperature reach a point that is generally considered uninhabitable for most living organisms?

<p>10 kilometers, reaching $300°C$, exceeding the survival limit for almost all living organisms. (B)</p> Signup and view all the answers

Which of the following is the most accurate representation of the relationship between saltwater, freshwater, and accessible freshwater?

<p>Saltwater &gt; Freshwater &gt; Accessible Freshwater (B)</p> Signup and view all the answers

What is the primary difference between the rocks in the upper mantle (close to the crust) and the deeper regions of the mantle?

<p>The upper mantle rocks are solid, while the deeper mantle rocks are partially molten, resembling a thick paste. (C)</p> Signup and view all the answers

Magma, which eventually erupts as lava from volcanoes, originates from which layer of the Earth?

<p>The mantle, where partially molten rocks exist. (C)</p> Signup and view all the answers

Assuming that the total global freshwater resources remain constant, what would most likely happen if Quebec's freshwater resources were significantly depleted due to pollution or overuse?

<p>Other regions with abundant freshwater resources would likely face increased pressure and demand. (D)</p> Signup and view all the answers

What are the two primary types of crust that make up Earth's outermost layer, and what are their distinguishing features?

<p>Continental crust, forming the landmasses, and oceanic crust, located beneath the oceans. (C)</p> Signup and view all the answers

What percentage of the air composition is made up of gases other than nitrogen and oxygen?

<p>1% (A)</p> Signup and view all the answers

Which of the following activities primarily relies on the presence of the atmosphere for human interaction?

<p>Parachuting (B)</p> Signup and view all the answers

At what altitude is air density the greatest compared to other layers of the atmosphere?

<p>Troposphere (D)</p> Signup and view all the answers

What method do wind turbines use to produce energy?

<p>Wind energy transformation (C)</p> Signup and view all the answers

Which aspect of the atmosphere is most critical for sustaining human life?

<p>Oxygen availability (B)</p> Signup and view all the answers

What is the primary characteristic of the troposphere?

<p>It contains the most air and water vapor. (A)</p> Signup and view all the answers

Which layer of the atmosphere is known for absorbing most harmful UV rays?

<p>Stratosphere (B)</p> Signup and view all the answers

In which layer of the atmosphere would you find shooting stars?

<p>Mesosphere (C)</p> Signup and view all the answers

What phenomenon occurs in the thermosphere?

<p>Auroras (D)</p> Signup and view all the answers

What happens to temperature as altitude increases in the stratosphere?

<p>It increases. (B)</p> Signup and view all the answers

Flashcards

Lithosphere

The solid outer layer of Earth including mountains and plains.

Hydrosphere

All the water on Earth: oceans, lakes, rivers.

Atmosphere

The layer of gases surrounding Earth, essential for life.

Biosphere

The sphere containing all living organisms on Earth.

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Interaction of spheres

Spheres interact, e.g. heavy rain floods affecting soil and vegetation.

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Core

The innermost part of the Earth, composed of iron and nickel, divided into inner (solid) and outer (liquid) core.

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Mantle

The layer surrounding the core, made of partially melted rocks and solid rocks near the crust.

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Crust

The outermost solid layer of the Earth, divided into oceanic (thinner) and continental (thicker) crust.

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Volume Percentage

The core makes up about 17%, mantle about 81%, and crust less than 2% of Earth's total volume.

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Temperature Gradient

The temperature decreases as you move from the core toward the surface of the Earth.

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Earth's Internal Structure

The Earth consists of three main layers: core, mantle, and crust.

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Magma

Magma is molten rock that originates from the mantle and erupts as lava from volcanoes.

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Earth's Crust

The outermost layer of the lithosphere, where landforms exist.

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Upper Mantle

The solid part of the mantle located directly below the Earth's crust.

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Geological Phenomena

Natural events like earthquakes and volcanic activity occurring in the lithosphere.

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Variable Thickness

The thickness of the lithosphere ranges from 70 km to 150 km.

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Relief

The collection of forms on the lithosphere's surface, including heights and depressions.

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Plateau

A vast, flat area at least 300 meters above surrounding land.

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Shield

An ancient, elevated plateau that is slightly dome-shaped.

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Mountain

A high-elevation area with steep slopes formed from tectonic activity.

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Valley

Low-lying areas found between mountains, often formed by erosion.

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Troposphere

The lowest atmospheric layer, containing the most air and weather phenomena.

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Stratosphere

The second layer where temperature increases and contains the ozone layer.

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Mesosphere

The layer where temperature decreases and space debris burns up.

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Thermosphere

An upper layer with extremely high temperatures and where auroras occur.

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Ozone Layer

Part of the stratosphere that absorbs 90% of harmful UV rays.

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Evaporation

The process where water changes from liquid to vapor due to heat from the sun.

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Condensation

The process where water vapor cools and turns back into liquid water, forming clouds.

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Precipitation

The process where water droplets in clouds fall to Earth as rain, snow, or hail.

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Water Cycle

The continuous movement of water through evaporation, condensation, and precipitation.

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Role of Heat Transfer

The water cycle helps transfer heat between the oceans, atmosphere, and continents.

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Condensation Trails

White trails left by airplanes due to water vapor condensing in the troposphere.

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Proportion of Saltwater

Saltwater makes up 97.2% of Earth's total water, mainly found in oceans and seas.

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Proportion of Freshwater

Freshwater constitutes only 2.8% of Earth's total water, crucial for life.

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Sources of Freshwater

Freshwater sources include glaciers, groundwater, surface water, and vapor.

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Scarcity of Freshwater

Freshwater is a scarce resource, making up only 0.02% of all water on Earth.

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Composition of Air

Air is primarily made of nitrogen (78%) and oxygen (21%), with 1% being other gases.

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Air travel

The use of aircraft like airplanes and helicopters to transport people or goods quickly.

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Recreational activities in air

Various fun activities include parachuting, kite flying, and hot air ballooning.

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Wind turbines

Devices that convert wind energy into electricity, harnessing the power of air movement.

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Air density

Air density is highest in the troposphere, decreasing with altitude; most mass is within 10 km from Earth's surface.

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