What is the the process where plants use CO2 to make sugar and oxygen
What is photosynthesis
What is Phosphorus mostly found in
What is rocks and minerals
What percent of our atmosphere is nitrogen gas
What is 78%
this happens when the water in the ocean turns into gas and goes into the atmosphere
What is evaporation
limiting nutrients
What is whose supply limits productivity
The process in which animals use oxygen to make more CO2
What is respiration
An essential nutrient for life
What is DNA
Higher organisms use nitrogen to make their what
What is proteins
This happens when the evaporated water forms into clouds
What is condensation
What is normally limiting in the oceans
What is nitrogen
What is the main regulator of CO2 in the atmosphere because CO2 easily dissolves in it
What is the ocean
Another source of phosphorus in water
What is man made pollution
Animal waste decay by the action of bacteria, which create what
What is ammonia and nitrate
This happens when the condensation builds up and causes for example rainfall
What is precipitation
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
Another natural source for CO2
What is Volcanoes
What can lead to too much phosphorus in water
What is plant overgrowth
animals eat this containing nitrgen
What is plants
What happens to that rainfall
It evaporates
Nutrients
Too much CO2 in the atmosphere may be responsible for this effect
What is the greenhouse effect
some places phosphorus in soils can be washed away into
What is water basins
Animals and plants cannot directly use all nitrogen found in our what
What is the atmosphere
What is this cycle called
What is the water cycle
Different oxygen cycles
What is water cycle, carbon cycle, nitrogen cycle, and phosphorus cycle