Cycles of Matter

What is the process by which water changes from a liquid to a gas called?

• evaporation

• melting

• sublimation

• condensation

What is the process by which water vapor changes from a gas to a liquid called?

• precipitation

• condensation

• sublimation

• evaporation

What is the process by which water falls from the atmosphere to the Earth's surface called?

• evaporation

• precipitation

• transpiration

• condensation

What is the process by which water moves from the Earth's surface to the atmosphere called?

• sublimation

• precipitation

• condensation

• evaporation

What is the main source of carbon in the carbon cycle?

• carbon dioxide (CO2)

• carbonate rocks

• carbon monoxide (CO)

• carbonated beverages

What is the process by which carbon dioxide is removed from the atmosphere and converted into organic compounds by plants called?

• combustion

• respiration

• photosynthesis

• evaporation

What is the process by which carbon is returned to the atmosphere as carbon dioxide through respiration, decomposition, and combustion called?

• carbon release

• carbon exhalation

• carbon emission

• carbon cycle

What is the process by which nitrogen gas is converted into a usable form by nitrogen-fixing bacteria called?

• nitrogen conversion

• nitrogen transformation

• nitrogen fixation

• nitrogen alteration

What is the process by which nitrogen compounds are converted back into nitrogen gas by denitrifying bacteria called?

• denitrification

• nitrogenization

• nitrogenification

• nitrogenation

What is the process by which phosphorus is released from rocks and minerals and made available for plants called?

• erosion

• deposition

• evaporation

• weathering