1.2 Review

What are the four spheres of the Earth system?

• Lithosphere, Troposphere, Biosphere, Hydrosphere
• Exosphere, Stratosphere, Atmosphere, Hydrosphere
• Biosphere, Atmosphere, Geosphere, Hydrosphere
• Thermosphere, Mesosphere, Geosphere, Hydrosphere

Which sphere is responsible for providing living things with oxygen and carbon dioxide?

• Biosphere
• Hydrosphere
• Atmosphere
• Geosphere

Which of the following statements about Earth's atmosphere is true?

• Earth's atmosphere is the only one in the solar system that contains oxygen.
• The moon has a thick atmosphere like Earth's.
• The atmosphere of Venus is composed of oxygen.
• The gases in Earth's atmosphere are poisonous.

Which sphere includes the rocks, mountains, and other physical features of the Earth?

• Lithosphere
• Hydrosphere
• Biosphere
• Geosphere

What is the source of magma for volcanoes?

• Hydrosphere
• Geosphere
• Atmosphere
• Biosphere

What is the largest reservoir of freshwater in the hydrosphere?

• Groundwater
• Lakes
• Soil moisture
• Glacial ice

What percentage of the Earth's water is usable fresh water?

• 50%
• 25%
• 10%
• Less than 1%

Which of the following best defines the biosphere?

• The geosphere, atmosphere, and hydrosphere interacting to support life.
• The Earth's four spheres interconnected and interacting with each other.
• The living things on the planet, including both plants and animals.
• The interactions among the spheres that shape the Earth system.

What is an example of an ongoing, steady process that illustrates how interactions change the spheres?

• A flood caused by heavy rainfall.
• Erosion from water and wind breaking down rocks.
• A volcanic eruption.
• A cold snap killing a fruit crop.

How does human activity impact the geosphere, oceans, and atmosphere?

• It alters the face of the geosphere, but does not affect the oceans or atmosphere.
• It has no impact on any of the spheres.
• It can change the geosphere, impact the oceans, and alter the atmosphere.
• It only affects the atmosphere, but not the geosphere or oceans.