Nitrogen cycle
How many nitrogen gas is in the atmosphere
78 %
What do plants use in the process of photosynthesis
CO2
where is phosphorus mostly contained in ?
In rocks and minerals
Water evaporates to form what ?
Clouds
What do higher organisms make with nitrogen
Proteins
What does the process of photosynthesis create ?
Sugar and oxygen
What is one of the most important chemical that phosphorus make up ?
DNA
Where does the water that evaporate and condense come from ?
Lakes and oceans
Bacteria that can break down ammonia into a gaseous form of nitrogen
denitrification bacteria
What is the main regulator of CO2 in the atmosphere?
The ocean
Between what is phosphorus moving in the phosphorus cycle ?
Soil and plants
How do we call the action of the water falling from the clouds to the surface ?
Precipitation
name of the only bacteria that can directly use nitrogen in the atmosphere
Nitrogen-fixing bacteria
Why is there more CO2 released in the atmosphere today ?
Because of the burning of the fossile fuels
where does the source of phosphorus in water comes from ?
From man-made pollution
How do we call the water that seeps into the ground ?
Groundwater
What do the decay of the animal waste by the action of the bacteria create ?
Nitrate and ammonia products
What is the effect that can occur if there is too much CO2 in the atmosphere ?
The Greenhouse effect
Too much phosphorus in water leads to what?
Plant overgrowth
How is groundwater released to the atmosphere ?
Through transpiration