Carbon Cycle and Carbon Footprint

What is another way we can lower our carbon footprint?

• burning fossil fuels

• planting a tree

• recycling

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis

•  decomposition and respiration

What carbon containing gas is produced when wood or fossil fuels are burned?

• Oxygen

• Nitrogen

• Chlorine

• Carbon Dioxide

Which of the following best describes the term 'carbon footprint'?

• A measure of greenhouse gas emissions that are caused by the activities you do

• A measure of carbon dioxide in the atmosphere

• A measure of carbon dioxide plants absorb

• A measure of the activities you do day to day

All of the carbon in existence is continually recycled in the carbon cycle

• True

• False

Tags

NGSS.MS-LS2-3

Why does too much carbon dioxide in the atmosphere cause climate change?

• It cools down our planet

• It blocks out UV rays

• It traps heat and warms up our planet

• It lets sunlight escape

Tags

NGSS.MS-ESS3-5

Which is NOT going to help reduce out carbon footprint?

• eating local food

• recycling

• going everywhere by car

• planting trees

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NGSS.MS-ESS3-4

In the carbon cycle, how do decomposers return carbon back to the ecosystem?

• They use CO2 to digest material

• They take CO2 out of the soil

• They take in CO2 during respiration

• They break down organic material and release CO2

Tags

NGSS.MS-LS2-3

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-LS2-3

NGSS.MS-LS1-6

Carbon can be found _________________.

• only in the biosphere.

• in the atmosphere, biosphere, geosphere, and the hydrosphere. 

• only in the atmosphere.

• only in the hydrosphere.

• only in the geosphere.