The Carbon Cycle

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

• the Carbon Cycle

• the Oxygen Cycle

• the Carbon dioxide Cycle

• the Water Cycle

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

_____________ is an essential element of all living creatures.

• Gold

• Carbon

• Carbon dioxide

• Silver

The total amount of the carbon on Earth is constant.

• True

• False

Tags

NGSS.MS-ESS2-1

Carbon is used in the process called __________ by plants and algae to make food and the building blocks for growth.

• carbon cycle

• life

• photosynthesis

• decomposition

Tags

NGSS.MS-LS1-6

In the oceans; algae, plants, and other organisms use carbon from the atmosphere for ________________.

• respiration

• decomposition

• transpiration

• photosynthesis

Tags

NGSS.MS-LS1-6

Since the mid- 1800's, _____________ activity has significantly altered the carbon cycle.

• animal

• plant

• unknown

• human

Tags

NGSS.MS-ESS3-4

Bacterias that decompose dead plants release _____________ back into the atmosphere.

• water

• nitrogen

• oxygen

• carbon

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Organisms that die in the ocean may __________ to the bottom and form limestone rock of a period of time.

• sink

• float

• rise

• increase

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Over ________________ of years, once-living matter that remains in the ground can transform into fossil fuels.

• millions

• hundreds

• thousands

• a few handful

Tags

NGSS.HS-ESS2-6

Burning fossil fuels has raised the concentration of ___________ in the atmosphere.

• oxygen

• rain

• carbon

• nitrogen

Tags

NGSS.HS-ESS2-6