Carbon and Nitrogen Cycles

A gas produced by plants during photosynthesis that animals use for respiration.

• Oxygen
• Carbon Dioxide
• Methane
• Sulphur

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A process by which animals use oxygen and food to make energy and carbon dioxide.

• Respiration
• Photosynthesis
• Running
• Carbon

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A gas produced by animals during respiration that plants use for photosynthesis.

• Oxygen
• Carbon Dioxide
• Photosynthesis
• Radiation

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen.

• Respiration
• Photosynthesis
• Roots
• Water Cycle

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

What converts nitrogen gas into a usable form for plants and animals?

• bacteria

• rain

• fungi

• car exhaust

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The process in which nitrogen circulates and is recycled is called

• The nitrogen cycle

• The carbon cycle

• The water cycle

• The phosphorus cycle

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NGSS.MS-LS2-3

Organisms that need nitrogen to survive.

• only plants

• only animals

• only bacteria

• all living things

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How is nitrogen "fixed" into a usable form for plants?

• Through action of bacteria only

• Through lightning only

• Through action of bacteria and lightning

• Through photosynthesis

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How do animals get the nitrogen they need?

• From the air they breathe

• From the water they drink

• From the food they eat

• From the sun

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Gas that makes up 78% of our atmosphere.

• Oxygen

• Nitrogen

• Hydrogen

• Carbon Dioxide