Carbon and Nitrogen Cycles

What did the family buy last weekend?

• A rotating compost bin

• A pony

• A new car

• A bicycle

Why is the rotating feature of the compost bin important?

• It increases its capacity

• It makes it easier to move around

• It helps in aeration

• It makes it look cool

What are the two major elements that compost supplies to plants?

• Magnesium and Sulfur

• Oxygen and Hydrogen

• Carbon and Nitrogen

• Phosphorus and Potassium

Tags

NGSS.MS-LS2-3

Which form of carbon is known to be one of the hardest substances?

• Graphite

• Coal

• Diamond

• Charcoal

What is the primary gas in the atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Argon

What process releases carbon dioxide by both plants and animals?

• Transpiration

• Fermentation

• Cellular respiration

• Photosynthesis

What is the role of denitrifying bacteria in the nitrogen cycle?

• They convert ammonia into nitrates and nitrites

• They produce oxygen through photosynthesis

• They fix nitrogen from the atmosphere

• They convert nitrates and nitrites back into atmospheric nitrogen gas

What can excessive nitrogen in water bodies lead to?

• Increased water clarity

• Decreased aquatic life diversity

• Excessive growth of aquatic producers

• Lower water temperatures

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

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What are the monomers of proteins?

• Glucose molecules

• Fatty acids

• Amino acids

• Nucleotides

Why is too much carbon dioxide in the atmosphere not a good thing?

• It makes the air unbreathable

• It decreases the oxygen levels

• It reduces plant growth

• It can trap heat in the atmosphere

Tags

NGSS.HS-ESS2-6

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