Carbon cycle

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

Tags

NGSS.HS-ESS2-6

Which one of these does not add CO2 to the atmosphere?

• cooking with gas
• planting trees
• burning wood
• riding in a bus

Tags

NGSS.MS-LS1-6

What does not produce carbon dioxide?

• Photosynthesis
• Burning Fossil Fuels
• Animal respiration
• Plants decaying

Tags

NGSS.MS-LS1-6

What are two ways animals return carbon to the carbon cycle?

• respiration and photosynthesis

• decomposition and respiration

How does the carbon in grass become part of a lion?

• The lion eats the grass
• Carbon from grass doesn't end up in a lion. 
• The carbon ends up in the lion's food chain. 
• The lion breathes in carbon given out by the plant

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Carbon is continually recycled in the carbon cycle

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Organisms that do not decompose can be buried and become what?

• water
• nutrients
• air
• fossil fuels

Tags

NGSS.MS-LS4-1

If the plant population decreased, the amount of carbon in the atmosphere would most likely_________.

• Stay the same

• Increase

• Decrease

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following creates a calcium carbonate structure?

• plants

• cows

• corals

• decomposers

What organisms in the ocean absorb the most carbon dioxide?

• Algae and marine plants

• Ocean mammals, like whales and dolphins

• Fish

• Coral

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3