The Carbon Cycle

TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

• True
• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Select all of places or substances where carbon can be found.

• The Atmosphere

• Soil

• Fossil Fuels

• The Ocean

Which of the following processes removes carbon from the atmosphere?

• Combustion

• Respiration

• Photosynthesis

• Death

Cellular respiration is the process by which all living things make energy in the form of ATP. Cellular respiration breaks down sugar (glucose) and _____________ to create energy, however cellular respiration releases _____________ _____________ into the atmosphere.

• photosynthesis, air

• carbon, oxygen

• oxygen

• oxygen, carbon dioxide

The diagram shows the flow of organic molecules through an ecosystem. What two processes are identified by the labels X and Y?

• X : Respiration
  Y : Predation
• X : Adaptation
  Y : Decomposition
• X : Fermentation
  Y : Nitrogen Fixation
• X : Decomposition
  Y : Respiration

Tags

NGSS.MS-LS2-3

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide and other greenhouse gases in the atmosphere
• higher levels of oxygen in the atmosphere

Tags

NGSS.MS-ESS3-5

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

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

• water

• nitrogen

• oxygen

• carbon

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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