CLEAN Carbon Cycle: Pre-Test

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Spring 2020. For participation credit. Complete this quiz BEFORE watching our lecture and demonstration on Tuesday.

Please enter your first name and last initial only *

Which science teacher do you have? *

Hill

Armstrong

Trejo

Other:

Where does the carbon that makes up our bodies come from? *

From the air we breathe in

from the water we drink

we absorb it from the sun

from the food we eat

What form of carbon do we exhale? What's the term for this process? *

Carbon dioxide (respiration)

Carbon dioxide (perspiration)

Carbon fiber (respiration)

Carbon monoxide (burping)

What form of carbon do we use for most of the energy in our everyday lives (for electricity, cars, etc)? *

Carbon dioxide

Oil, coal, gasoline, natural gas

Limestone minerals

Diamonds

How do plants acquire carbon to build their structures? *

Respiration

They absorb it from the sun

Photosynthesis

Carbon seeps into the roots from the soil

Why should we care about the amount of carbon dioxide that is in the air? *

It is a strong greenhouse gas, which heats the planet

It is toxic to plants

It is flammable

It can block out the sun, and cause planes to crash

What happens when the ocean absorbs a lot of carbon dioxide? *

It helps fish breathe

It causes the ocean to heat up, just like the atmosphere

It creates carbonic acid, lowers the pH of ocean water, and kills corals and phytoplankton

It creates bigger waves and more coastal flooding

How are humans causing Earth to heat up? *

By burning fossil fuels, which puts very large amounts of carbon dioxide into the air

By accidentally creating a hole in the ozone layer

By eating too many vegetables and grains

By building too many buildings and roads that get hot in the sun

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