Biogeochemical Cycles

Which of the following is an example of how biogeochemical cycles are important in sustaining life?

• The atoms of water molecules are destroyed during a drought.

• Oxygen atoms are converted into carbon during cellular respiration.

• Nitrogen in wastes are converted into useable nutrients for other organisms.

• New carbon atoms are created during the carbon cycle.

Tags

NGSS.MS-LS2-3

Decomposition is found during which of the following cycles? Choose all the apply.

• Phosphorus

  Cycle

• Carbon

  Cycle

• Nitrogen

  Cycle

• Water Cycle

Tags

NGSS.MS-LS2-3

The Phosphorus cycle is important because phosphorus is contained in

• sugars

• DNA

• proteins

• starches

Carbon Dioxide (CO₂) is released in which of the following processes?

• photosynthesis

• decomposition

• combustion

• cellular respiration

Tags

NGSS.MS-LS1-7

In the carbon cycle, the only process that removes CO2 from the atmosphere is

• combustion

• cellular respiration

• decomposition

• photosynthesis

Tags

NGSS.MS-LS1-6

Each process in the nitrogen cycle is carried out by

• bacteria

• mice

• cows

• plants

Tags

NGSS.MS-LS2-3

Ammonification is the process by which decomposers convert wastes and dead organisms into ____.

• ammonium

  NH₄⁺

• Nitrate

  NO₃^-

• Nitrite

  NO₂^-

• nitrogen gas

  N₂

Tags

NGSS.MS-LS2-3

Denitrification is the process by which bacteria

• Make ammonium

  NH₄⁺

• Create Nitrate

  NO₃^-

• Create Nitrite

  NO₂^-

• Return nitrogen gas to the air

  N₂

Tags

NGSS.MS-LS2-3

Nitrification is the process by which bacteria

• Make ammonium

  NH₄⁺

• Create Nitrate

  NO₃^-

• Create Nitrite

  NO₂^-

• Return nitrogen gas to the air

  N₂

Tags

NGSS.MS-LS2-3

According to the diagram, geologic activity, such as volcanoes,

• Increases the levels of CO₂ in the atmosphere.

• Decreases the levels of CO₂ in the atmosphere.

Tags

NGSS.MS-ESS2-1