Water Cycle
Water Up
Evaporation:
Transpiration:
Water then condenses
in the air to form clouds. Further condensation
takes place until
forms.
Water Down
Precipitation:
Examples include:
Water then moves around the earth by
Condensation
.
Examples
Pic
Pic
Pic
Pic
Runoff and
Groundwater
Carbon Cycle
Carbon out of the atmosphere
Carbon is drawn out by
in the process of
.
Carbon returned to atmosphere
Respiration:
It is also returned through open
and combustion of
Decaying matter provides material for fossil fuels and releases
into the atmosphere.
CO2 in Atmosphere
Pic
Pic
Pic
Death
&
Decomposition
Combustion
Open Burning
Respiration
Pic
Pic
Fossil Fuels
Nitrogen Cycle
Nitrogen out of atmosphere
Nitrogen-fixing bacteria convert N2 into NH3 also called
.
or liquid animal waste and decaying material also release ammonia into the soil.
Carbon returned to atmosphere
NH3 can be assimilated by
to take nitrogen out of the soil.
NH3 can be converted to NO3 then go through
back into the atmosphere.
to make N2 and be released
Atmospheric Nitrogen (N2)
N2
Pic
Animal Waste
Ground
(aka
Dead
Organisms
)
by plants
Nitrogen-fixing
Bacteria
(Denitrification)
Nitrates (N3)
Ammonia (NH3)