carbon cycle
recycling of carbon between living and nonliving parts of the biosphere
What is the carbon cycle
why pjosphates are critical parts of life
Phosphates are a critical part of life because holds DNA and RNA together
What things can do nitrogen fixation
Nitrogen Fixation definition
An organism that can create its own food
Autotroph
Where most nitrogen found on our planet
Atmosphere
Plants using the sun's energy to make food
What is photosynthesis
Fertilizer and raising hogs is what
How do humans contribute to these excessive levels of phosphorus
Produces nitrates from ammonia
Nitrification
An organism that must eat other organisms
heterotroph
A phenomenon in which a body of water becomes rich in nutrients resulting in algae blooms and dead zones
Eutrophication
Proses where living organisms change oxegen into carbon dioxide
Respiration
Phosphorus is mainly stored in the
soil and rock
nitrogen gas chemical formula
N2
Dead plants and animals that become fossils and very slowly become coal or oil
Fossilization
In a body of water, an area with extremely low oxygen concentration and very little life
Dead zone
Coal oil natural gas and other fuels that are ancient remains of plants and animals
What is fossil fuels
Some of the phosphorus in soils can be washed away into
Water pollution
bacteria in the soil break down nitrates to release nitrogen gas into the atmosphere
Denitrification
Natural situation in which heat is retained in Earth's atmosphere by carbon dioxide, methane, water vapor, and other gases
Greenhouse effect
produced by burning fossil fuels, makes smog and acid rain
nitric oxides
Glucose and oxygen
What is products of photosynthesis
Another source of phosphorus in water comes from man made
pollution
where do plants obtain their nitrogen from
soil
an increase in the overall temperature of the earth's atmosphere that causes climate change; generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs & other pollutants
Global warming
The ultimate source of energy for all living things
The sun