Water Cycle
Process in which water in the clouds falls to the earth.
What is precipitation?
This process returns carbon in a dead organism back to the soil.
What is decomposition?
This form is the form of nitrogen that plants/animal cannot use.
What is nitrogen gas?
This is the form of phosphorus that starts out trapped in rock.
What is phosphate?
This gas makes up 78% of the atmosphere.
What is nitrogen?
Process in which liquid water to change into a gas.
What is evaporation?
Name one carbon sink.
What are oceans?
What are trees?
This is the form of nitrogen that plants are able to use.
What are nitrates (NO3)?
This gradual process that releases phosphorus from the the rock.
What is erosion/weathering?
This is the only element that does not enter the atmosphere.
What is phosphorus?
Process in which water vapour changes into a liquid.
What is condensation?
This gas is released during combustion.
What is carbon dioxide?
These bacteria convert ammonium (NH4) into nitrates (NO3).
What are nitrifying bacteria?
Phosphorus is needed by all living things to make this substance.
What DNA?
What are cell membranes?
These three elements are found in fertilizer.
What is nitrogen, phosphorus and potassium?
The largest source of water for the water cycle can be found in this sphere?
What is the hydrosphere?
This is the process in which plants change carbon dioxide into oxygen and other molecules.
What is photosynthesis?
These bacteria convert nitrogen gas (N2) into ammonium (NH4).
What are nitrogen fixing bacteria?
Plants are able to absorb dissolved phosphates through their_______________.
What are roots?
When excess fertilizer runs-off into water bodies, it can cause this process to happen.
What is eutrophication?
Process in which water evaporates from the surface of a plant.
What is transpiration?
The process by which living thing release carbon dioxide into the air.
What is respiration?
This process removes nitrogen from the soil and put it back in the air.
What is denitrification?
After millions of years, trapped phosphate underground is brought back to surface again by this process.
What is geological uplift?
The erosion of rock from running water/wind carries this element.
What is phosphorus?