process that makes natural gasses and oxygen?
What is photosynthesis?
Where the water goes after it condensates
What are clouds?
they use their waste products to help return the sulfur to the soil
What are animals?
78% nitrogen
What is the atmospher?
The photosynthesis equation
What is carbon dioxide + water+ Sugar =oxygen
the water ___ from the ocean
What is evaporation
strangles all other life forms in the water
What is over growth
Higher organisms use nitrogen to make
What are proteins
Burning fossils fuels
What is released because of burning fuels ?
1st step of water cycle
What is evaporation
What are basins?
Releases N2 gas through denitrification
What is bacteria
Another source of CO2
What are volcanos ?
Describes how water evaporates from the surface of the earth
What is the water cycle
too much phosphorus rich fertilizer
What is hazardous , too large
____ is turned into fertilizer and applied to crops
What is N2 gas ?
Animals use this to make CO2
What is respiration
Process of water cycle
What is evaporation, transpiration, condensation, precipitation
Washes phosphates from rock into the ocean
What is geological activity
Animal waste decay by the action of bacteria which creates___