Earth's cycles

What is the process called when water vapor cools and changes back into liquid droplets?

• Evaporation

• Condensation

• Precipitation

• Transpiration

Which term describes the movement of water from the surface of the Earth to the atmosphere and back again?

• Carbon cycle

• Nitrogen cycle

• Water cycle

• Hydrosphere

What is the term for water that flows over the ground surface rather than being absorbed into the ground?

• Runoff

• Collection

• Transpiration

• Evaporation

Which process involves plants releasing water vapor into the atmosphere?

• Precipitation

• Transpiration

• Condensation

• Collection

What is the term for the accumulation of water in rivers, lakes, and oceans?

• Evaporation

• Collection

• Runoff

• Condensation

Which cycle involves the exchange of carbon among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere?

• Water cycle

• Nitrogen cycle

• Carbon cycle

• Hydrosphere

What is the term for the process by which nitrogen is converted between its various chemical forms?

• Water cycle

• Nitrogen cycle

• Carbon cycle

• Lithosphere

What is the measure of the amount of water vapor in the air?

• Humidity

• Precipitation

• Condensation

• Evaporation

Which term refers to the outermost layer of the Earth, consisting of the crust and upper mantle?

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

What is the term for the global sum of all ecosystems, including all living organisms and their interactions with the elements of the lithosphere, hydrosphere, and atmosphere?

• Biosphere

• Hydrosphere

• Lithosphere

• Atmosphere