The Carbon Cycle

Carbon dioxide is absorbed by producers to make what in photosynthesis?

• oxygen
• carbon
• carbohydrates
• water

Tags

NGSS.MS-LS1-6

When is most of the carbon dioxide that is exhaled from plants formed?

• respiration
• circulation
• photosynthesis
• when it starts the carbon cycle

Tags

NGSS.MS-LS1-6

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

• water
• atmosphere
• sun
• air

Tags

NGSS.MS-ESS2-1

Which 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

Combustion is another word for

• burning
• melting
• exploding
• incinerating 

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

• respiration and decomposition
• respiration and photosynthesis
• death
• burning

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

NGSS.HS-LS2-5

How does the carbon in grass become part of a living animal?

• by eating the grass
• It doesn't end up in the animal no matter what
• It ends up in its food chain
• It breathes in carbon given out by the plant

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS1-7

Why is the increase in greenhouse gasses an issue

• It causes climate change and increase in the global temperature 
• It can lead to a major increase in greenhouses
• It leads to more factories
• It causes a moajor decrease in people

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

What process keeps Earth's temperature suitable for life

• Convention currents
• Greenhouse Effect
• Albedo Effect
• Water Cycle

Tags

NGSS.MS-ESS2-6

What is a carbon footprint

• the total amount of greenhouse gases that are emitted into the atmosphere
• the release of gas
• a place or environment where a plant or animal naturally or normally lives or grows
• a certain type of greenhouse gas

Tags

NGSS.HS-ESS2-6