1.4-1.5: Carbon and Nitrogen Cycle

What is the primary source of carbon dioxide emissions?

• Deforestation

• Burning of fossil fuels

• Agriculture

• Industrial processes

Tags

NGSS.MS-ESS3-5

Which process converts carbon dioxide into oxygen during the carbon cycle?

• photosynthesis

• respiration

• decomposition

• combustion

Tags

NGSS.MS-LS1-6

What is the process by which atmospheric nitrogen is converted into a usable form by plants?

• denitrification

• nitrification

• ammonification

• nitrogen fixation

Which process converts ammonia into nitrate during the nitrogen cycle?

• nitrification

• ammonification

• denitrification

• nitrogen fixation

What is the process by which nitrate is converted back into atmospheric nitrogen?

• nitrogen fixation

• denitrification

• nitrification

• ammonification

Tags

NGSS.MS-LS2-3

Which human activity contributes the most to carbon dioxide emissions?

• Burning fossil fuels for energy production

• Industrial processes

• Deforestation

• Agriculture

Tags

NGSS.HS-ESS2-6

Which process releases nitrogen gas back into the atmosphere?

• nitrogen condensation

• nitrogen fixation

• nitrogen absorption

• nitrogen decomposition

What is the main source of nitrogen for plants?

• water

• air

• sunlight

• soil

Which process converts atmospheric nitrogen into ammonia?

• nitrogen conversion

• ammonia synthesis

• atmospheric nitrogenation

• nitrogen fixation

What is the process by which ammonia is converted into nitrogen gas during the nitrogen cycle?

• nitrification

• nitrogen fixation

• ammonification

• denitrification