Ecocycles

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

• Atmosphere

• Air

• Water

• Greenhouse gases

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

• True
• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Which of the following removes carbon from the atmosphere?

• Combustion
• Respiration
• Photosynthesis
• Death

Tags

NGSS.MS-LS1-6

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

• water
• nutrients
• air
• fossil fuels

Tags

NGSS.MS-LS4-1

In what process is Carbon transformed into chemical energy?

• Photosynthesis
• Respiration
• Primary Production
• Secondary Production

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Why is the carbon cycle important?

• It continuously reuses and recycles carbon in the ecosystem

• It helps animals to digest food

• It takes oxygen and nitrogen out of the atmosphere

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

• Respiration

• Photosynthesis

• Decomposition

• Decarbonisation

What causes eutrophication?

• excessive nutrients

• radiation

• lack of phosphorus in an ecosystem

• lack of oxygen in water

what is phosphorus used for in the body?

• help digestion

• formation of bones and teeth

• strengthens nerve connections

• improves eyesight

what does too much phosphorus do to your body?

• does not have any negative effects

• negative impact on motor skills

• stunts growth

• hardens organs and soft tissue