Cycling of Matter in Earth's Spheres

Elements such as carbon can move through the environment and organisms in a cycle because living and nonliving things interact in_______________________.  

• cells

• species

• organisms

• ecosystems

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The carbon cycle makes carbon compounds continously available in an ecosystem and delivers _____________________. 

• water to all organisms

• light energy to autotrophs

• carbon dioxide to animals within the ecosystem

• checmical energy to organisms within the ecosystem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Fossil Fuels are part of which of these cycles? 

• carbon

• oxygen

• nitrogen

• phosphorus

Tags

NGSS.MS-ESS3-1

What happens during the process of nitrogen fixation?

• Bacteria change ammonia into nitrate.

• Bacteria grow on nodules on plant roots.

• Bacteria convert gaseous nitrogen into ammonia

• Bacteria absorb ammonia and ecrete ammonium.

Tags

NGSS.MS-LS2-3

Bacteria are important in the nitrogen cycle because they __________________________.

• produce sugars that plants can use

• decay and eventually form fossil fuels

• respire, returning carbon dioxide into the atomosphere

• help convert nitrogen into a form that organisms can use

Which process is part of the hydrologic cycle?

• nitrification

• transpiration

• sedimentation

• decomposition

Tags

NGSS.MS-ESS2-4

What happens to the phosphorus when animals die?

• returns to soil

• is dissolved in water

• evaporates into the atmosphere

• is decomposed by decomposers

Tags

NGSS.MS-LS2-3

Transpiration in trees is part of which cycle?

• water cycle

• carbon cycle

• nitrogen cycle

• phosphorus cycle

Tags

NGSS.MS-ESS2-4

What is Earth's greatest carbon reservoir?

• biosphere

• geosphere

• atmosphere

• hydrosphere

Tags

NGSS.MS-LS1-6

Which of these accurately describes an undesired product from the use of fossil fuels for energy?

• At the present rate, we will run out of fossil fuels in about 250 years.

• Burning fossil fuels releases large amounts of carbon dioxide into the atmosphere.

• Fossil fuels account for 69 percent of the electricity generated in the United States.

• If we continue to burn fossil fuels, we will have to wait a century before the fuel is replenished in the Earth.

Tags

NGSS.HS-ESS3-4

NGSS.HS-ESS3-5