Carbon Cycle
Phosphorus Cycle
Nitrogen Cycle
Water Cycle
Extra
100

What is the the process where plants use CO2 to make sugar and oxygen

What is photosynthesis 

100

What is Phosphorus mostly found in

What is rocks and minerals

100

What percent of our atmosphere is nitrogen gas

What is 78%

100

this happens when the water in the ocean turns into gas and goes into the atmosphere 

What is evaporation

100

 limiting nutrients

What is whose supply limits productivity

200

The process in which animals use oxygen to make more CO2

What is respiration 

200

An essential nutrient for life 

What is DNA

200

Higher organisms use nitrogen to make their what

What is proteins

200

This happens when the evaporated water forms into clouds 

What is condensation

200

What is normally limiting in the oceans 

What is nitrogen 

300

What is the main regulator of CO2 in the atmosphere because CO2 easily dissolves in it 

What is the ocean

300

Another source of phosphorus in water

What is man made pollution 

300

Animal waste decay by the action of bacteria, which create what

What is ammonia and nitrate

300

This happens when the condensation builds up and causes for example rainfall 

What is precipitation

300

biogeochemical cycle 

What is the process in which elements, chemicals, compounds, and other forms of matter are passed from one organism to another and from one part of the  biosphere to another

400

Another natural source for CO2

What is Volcanoes

400

What can lead to too much phosphorus in water 

What is plant overgrowth 

400

animals eat this containing nitrgen

What is plants

400

What happens to that rainfall 

It evaporates

400

Nutrients 

what is chemical substances that an organism needs to sustain life 
500

Too much CO2 in the atmosphere may be responsible for this effect

What is the greenhouse effect

500

some places phosphorus in soils can be washed away into

What is water basins

500

Animals and plants cannot directly use all nitrogen found in our what

What is the atmosphere 

500

What is this cycle called

What is the water cycle

500

Different oxygen cycles 

What is water cycle, carbon cycle, nitrogen cycle, and phosphorus cycle