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Carbon cycle
Nitrogen cycle
Water cycle
Human activity
vocabulary
100
A process by which carbon is cycled between the atmosphere, land,water,& organisms.
What is the carbon cycle
100
The percentage of the atmosphere made of nitrogen gas.
What is 78%?
100
Rain, snow, sleet, and hail are all examples of this
What is precipitation?
100
Burning fossil fuels releases this chemical into the atmosphere
What is carbon dioxide?
100
the process of burning materials
What is combustion?
200
The largest reservoir of carbon on earth
What is the ocean?
200

organisms that require nitrogen to make chemical compounds

What is bacteria?

200
the changing of water to water vapor that enters the atmosphere.
What is evaporation?
200
the majority of the Earth's fresh water is frozen in these rapidly disappearing structures
What are glaciers?
200
the process of an organism using a resource in the environment
What is uptake?
300
plants take in carbon dioxide from the atmosphere and create carbohydrates
What is Photosynthesis?
300

The three chemicals bacteria makes after decomposing.

What is ammonia, nitrites, and nitrates?

300
What is the ultimate driving force for the water cycle?
What is the sun?
300

Global climate change is primarily caused by this

What is increasing carbon dioxide levels?

300
bacteria that take the nitrogen in the waste of organisms and convert it back to nitrogen gas in the atmosphere
What are denitrifying bacteria?
400

Animals take in oxygen and release carbon dioxide into the atmosphere

What is respiration?

400

Two natural ways nitrogen is fixed for plants to use.

What is lightning and bacteria?

400

the loss of water from plants to the atmosphere though openings in leaves.

What is transpiration?

400

Increased temperatures from climate change result in an increase in this part of the water cycle

What is precipitation?

400
the formation of liquid water from water vapor (i.e. clouds).
What is condensation?
500
the breakdown of dead materials and organisms that recycles nutrients into the soil.
What is decomposition?
500
An organism that gains its necessary nitrogen from producers.
What is a consumer?
500

precipitation falling on the ground that moves on the surface to low lying areas?

What is runoff?

500

fertilizer runoff can cause a massive increase in algae and micro-organisms in water sources that ultimately kills other organisms. This happens because the fertilizer contains a large amount of this chemical.

What is nitrogen?

500

the unintentional or intentional release of harmful substances into the air, soil, or water

What is pollution?