Cycles of Matter

Which component of the carbon cycle is responsible for the breakdown of organic matter?

• Photosynthesis

• Cellular Respiration

• Combustion

• Decomposition

Which process in the carbon cycle is essential for plant growth?

• Photosynthesis

• Cellular Respiration

• Combustion

• Decomposition

Tags

NGSS.MS-LS1-6

What process uses bacteria to convert atmospheric nitrogen (N2) into ammonia (NH4) in the nitrogen cycle?

• Denitrification

• Biotic Fixation

• Nitrification

• Ammonification

Tags

NGSS.MS-LS2-3

What is the final product of denitrification in the nitrogen cycle?

• NH4

• NO3

• N2

• NO2

Tags

NGSS.MS-LS2-3

Which process in the nitrogen cycle involves the uptake of nitrates by plants?

• Assimilation

• Denitrification

• Ammonification

• Biotic Fixation

Tags

NGSS.MS-LS1-5

What is the role of soil bacteria in the nitrogen cycle?

• They convert N2 to NH4.

• They convert NO3 to N2.

• They convert NH4 to NO3.

• They convert organic N to NH4.

Tags

NGSS.MS-LS2-3

Which of the following is not a part of the nitrogen cycle?

• Assimilation

• Photosynthesis

• Denitrification

• Nitrification

What is the main form of nitrogen found in the atmosphere?

• NH4

• NO3

• N2

• NO2

What is the primary function of nitrification in the nitrogen cycle?

• To convert N2 to NH4

• To convert NH4 to NO3 and NO2

• To convert NO3 to N2

• To convert organic N to NH4

What is the source of sulfuric acid in the process of acid precipitation?

• Soil

• Plants

• Atmosphere

• Animals