Which sphere(s) contain carbon?

• Hydrosphere

• Atmosphere

• Biosphere

• Geosphere

• All of them

What is it called when carbon diffuses into the ocean and turns into carbonic acid?

• Decidification

• Acidification

• Neutralization

• Pollution

What does photosynthesis produce (come out)?

• Carbon Dioxide and Glucose

• Oxygen and Water

• Carbon Dioxide and Water

• Oxygen and Glucose

Carbon is found in _______

How does burning fossil fuels affect the atmosphere?

• It adds carbon in the form of carbon dioxide

• It takes away carbon dioxide

• It doesn't affect the atmosphere

Which is a TRUE statement?

• Carbon moves through the spheres in the same order

• Carbon atoms can get trapped in a sphere

• Carbon stays in the spheres for the same amount of time

• None of the are true

Which is NOT a type of macromolecule?

• Hydrocarbon

• Lipid

• Protein

• Nucleic acid

Can plants and animals use nitrogen from the air: Yes or no?

Which of these include the hydrosphere?

• Excess nitrates getting washed out into ground water

• Nitrogen being fixed by nitrogen fixing bacteria into usable nitrates

• Fungi decomposing dead animal material

• Lightning converting nitrates back to nitrogen gas

How do plants and animals get nitrogen?

• Directly from the air

• From decomposers converting dead material into ammonia

• From nitrogen fixing bacteria converting nitrogen into nitrates

• From plants taking it up through its roots