Nitrogen and Carbon Cycles

Name the process conducted by bacteria that turns waste into a usable nitrogen compound.

• nitrification

• denitrification

• ammonification

• assimilation

What process is represented by D?

• nitrification

• assimilation

• decomposition

• denitrification

Tags

NGSS.MS-LS2-3

What are the most important organisms to assist in the cycling of nitrogen?

• plants

• animals

• bacteria

• humans

Tags

NGSS.MS-LS2-3

Which process in the nitrogen cycle can involve storms and lightning to move nitrogen gas to the soil in precipitation?

• nitrification

• ammonification

• assimilation

• nitrogen fixation

The step of the nitrogen cycle that is in red is called (a)  

• Denitrification

• Nitrification

• Nitrogen Fixation

• Ammonification

Answer explanation

Denitrification is the process where nitrates are reduced to nitrogen gas, returning nitrogen to the atmosphere. This step is crucial in the nitrogen cycle, completing the cycle by removing excess nitrogen from the soil.

Tags

NGSS.MS-LS2-3

What process of the carbon cycle will release carbon into the atmosphere by decomposers?

• photosynthesis

• combustion

• respiration

• consumption

What process removes CO₂ from the atmosphere?

• nitrogen fixation

• photosynthesis

• combustion

• respiration

Tags

NGSS.MS-LS1-6

What process of the carbon cycle is represented by 2?

• decomposition

• respiration

• combustion

• photosynthesis

Tags

NGSS.MS-LS1-6

What is the general name given to the bacteria that fix nitrogen so that plants can use the nitrogen?

• Meristematic bacteria

• Oxygenating bacteria

• Nitrogen Fixing bacteria

• Denitrifying bacteria

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Building proteins and DNA is the reason organisms need what substance?

• Water

• Carbon

• Nitrogen

• Calcium

Tags

NGSS.MS-LS3-1