beta test Carbon and Nitrogen Cycle Quiz

What is the purpose of a rotating compost bin?

• To decompose biodegradable items

• To store food

• To grow plants

• To collect rainwater

What is the result of the decomposition of biodegradable items in a compost bin?

• Metal waste

• Toxic waste

• Plastic waste

• Nutrient rich organic material

What is the primary gas in the atmosphere?

• Oxygen

• Carbon dioxide

• Hydrogen

• Nitrogen

What is the process where nitrogen is fixed into a form of ammonia and ammonium?

• Denitrification

• Nitrification

• Ammonification

• Nitrogen fixation

What can excessive nitrogen in bodies of water lead to?

• Harmful effects on aquatic life

• Increased dissolved oxygen

• Decreased algae growth

• Clear water

What is the branch of science that studies the interactions of molecules containing carbon?

• Biology

• Chemistry

• Physics

• Geology

What is the form of carbon that makes up one of the hardest substances, diamond?

• Charcoal

• Graphite

• Diamond

• Coal

What is the process where nitrates and nitrites are converted back into atmospheric nitrogen gas?

• Denitrification

• Ammonification

• Nitrogen fixation

• Nitrification