Exploring Earth's Systems 1.4

Which of the following best describes the process of nitrogen fixation in the biogeochemical cycle?

• Conversion of nitrogen gas into ammonia by bacteria

• Release of nitrogen gas from decaying organic matter

• Absorption of nitrogen gas by plants

• Conversion of ammonia into nitrates by bacteria

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DOK Level 2: Skill/Concept

How does deforestation contribute to climate change?

• By increasing the amount of oxygen in the atmosphere

• By reducing the amount of carbon dioxide absorbed by trees

• By increasing the Earth's albedo

• By decreasing the amount of methane released

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DOK Level 2: Skill/Concept

Which of the following best explains the concept of Earth's energy budget?

• The balance between incoming solar radiation and outgoing terrestrial radiation

• The total amount of energy produced by the Earth's core

• The energy stored in fossil fuels

• The energy used by human activities

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DOK Level 2: Skill/Concept

What is the primary process by which water vapor enters the atmosphere in the water cycle?

• Precipitation

• Condensation

• Evaporation

• Transpiration

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DOK Level 2: Skill/Concept

Which of the following is an example of an open system in Earth science?

• A sealed terrarium

• The Earth as a whole

• A river system

• A closed ecosystem

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DOK Level 2: Skill/Concept

How are the Earth's systems linked in the context of the carbon cycle?

• Carbon is only cycled through the atmosphere and biosphere

• Carbon is cycled through the atmosphere, hydrosphere, biosphere, and geosphere

• Carbon is only cycled through the hydrosphere and geosphere

• Carbon is cycled through the biosphere and geosphere only

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DOK Level 2: Skill/Concept

Which of the following best describes the field of environmental science?

• The study of the physical structure of the Earth

• The study of the interactions between humans and their environment

• The study of celestial bodies

• The study of ancient civilizations

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DOK Level 2: Skill/Concept

What is a renewable resource?

• A resource that can be replenished naturally over short periods of time

• A resource that cannot be replaced once it is used

• A resource that is man-made

• A resource that is always available in unlimited quantities

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DOK Level 2: Skill/Concept

Which of the following is a major environmental problem caused by industrial activities?

• Increased biodiversity

• Air and water pollution

• Soil enrichment

• Decreased energy consumption

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DOK Level 2: Skill/Concept

How does population growth affect natural resources?

• It decreases the demand for resources

• It increases the availability of resources

• It leads to overexploitation and depletion of resources

• It has no impact on resources

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DOK Level 2: Skill/Concept