Natural Cycles

Explain the process of the carbon cycle.

• The carbon cycle involves the movement of carbon through the lithosphere only.

• The carbon cycle involves the movement of carbon through the atmosphere and biosphere only.

• The carbon cycle involves the movement of carbon through the atmosphere and hydrosphere only.

• The carbon cycle involves the movement of carbon through the atmosphere, biosphere, geosphere, and hydrosphere.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS1-6

What are the main reservoirs of carbon in the carbon cycle?

• Atmosphere, oceans, biosphere, and lithosphere

• Biosphere, stratosphere, lithosphere, and mesosphere

• Atmosphere, biosphere, asthenosphere, and troposphere

• Atmosphere, hydrosphere, lithosphere, and cryosphere

Tags

NGSS.HS-ESS2-6

How does carbon move from the atmosphere to the biosphere in the carbon cycle?

• Burning fossil fuels

• Photosynthesis

• Volcanic eruptions

• Cellular respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Describe the role of bacteria in the nitrogen cycle.

• Bacteria convert atmospheric nitrogen into a form that plants can use.

• Bacteria convert atmospheric nitrogen into a form that can be used as fuel.

• Bacteria convert atmospheric nitrogen into gold.

• Bacteria convert atmospheric nitrogen into a form that animals can use.

Tags

NGSS.MS-LS2-3

What is nitrogen fixation and which organisms are responsible for it?

• All plants and animals

• Only fungi and algae

• No organisms are responsible for it

• Certain bacteria and cyanobacteria

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Explain the process of denitrification in the nitrogen cycle.

• Denitrification is the process of converting nitrogen gas into nitrates.

• Nitrates are converted into nitrogen gas by bacteria in the soil.

• Denitrification occurs in the atmosphere, not in the soil.

• Nitrates are converted into oxygen by bacteria in the soil.

Tags

NGSS.MS-LS2-3

How are carbon and oxygen related in the carbon and oxygen cycle?

• Through the process of boiling and freezing

• Through the process of photosynthesis and respiration

• Through the process of evaporation and condensation

• Through the process of combustion and rusting

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the importance of photosynthesis in the carbon and oxygen cycle?

• It only affects the nitrogen cycle.

• It has no impact on the carbon and oxygen cycle.

• It converts oxygen into carbon dioxide and inorganic compounds.

• It converts carbon dioxide into oxygen and organic compounds.

Tags

NGSS.MS-LS1-6

Describe the role of decomposers in the natural cycles.

• Decomposers create organic matter and store nutrients in the environment.

• Decomposers have no role in natural cycles.

• Decomposers release harmful chemicals into the environment.

• Decomposers break down organic matter and release nutrients back into the environment.

Tags

NGSS.MS-LS2-3

Explain the impact of human activities on natural cycles.

• Human activities can disrupt natural cycles through deforestation, industrialization, and pollution.

• Human activities have no impact on natural cycles

• Human activities can improve natural cycles

• Natural cycles are not affected by human activities

Tags

NGSS.MS-ESS3-4