The Water Cycle
The Carbon Cycle
The Nitrogen Cycle
Miscellaneous
Cycles of Nature
100
Snow, sleet, hail, and rain
What are examples of precipitation?
100

When oxygen is added to a carbon compound and heat is released.

What is burning or combustion?

100
It is needed to build new cells.
What is nitrogen?
100

This process involving light energy is how carbon dioxide removed removed from the atmosphere.

What is photosynthesis.

100

This is the only way that nitrogen can enter back into the atmosphere.

What is bacteria (denitrification)?

200
This occurs when water is changed from a liquid to a gas.
What is evaporation?
200

This gas is released during combustion, respiration, and decomposition.

What is carbon dioxide?

200
This is how living organisms return nitrogen back to the environment.
What is they die and decompose?
200
This abiotic event may cause nitrogen fixation.
What is lightning?
200
The three ways carbon is returned to the atmosphere.
What is combustion, decomposition, and respiration?
300

This type of water filters slowly as it flows back into the soil. it is an important source for drinking.

What is ground water?

300
The breaking down of substances into simpler molecules.
What is decomposition?
300
This must occur before plants may use nitrogen to build cells.
What is nitrogen fixation?
300
The breakdown of dead materials.
What is decomposition?
300
These are two ways nitrogren fixation occurs.
What is through bacteria and lightning?
400
These are four major processes of the water cycle.
What are percipitation, transpiration, evaporation, and condensation?
400

These are formed from dead plants and animals over many years.

What are fossil fuels?

400
This is how farmers return nitrogen back to the soil.
What is they rotate crops and/or add feritlizer?
400
An element that is found in all biological molecules.
What is carbon?
400

Nitrogen and phosphates cause algae to grow fast(bloom) in bodies of water, the algae dies, decomposes and then fish die due to low oxygen levels?

What is eutrophication.

500

Plants return water to the atmosphere through stomata.

What is transpiration?

500

This process is how plants change carbon dioxide and water into glucose and oxygen.

What is photosynthesis?

500
The percentage of our environment that is made up of the element of nitrogen.
What is 78%?
500

This molecule is used to regulate body temperature.

What is water?

500
This physics principle best describes 'nutrient cycling'
What is conservation of matter/matter can not be created, nor destroyed?