water cycle
Rain, snow, hail etc.
What is precipitation
What process do animals use in the carbon cycle
What is photosynthesis
Our atmosphere is __ percent nitrogen gas.
What is 78
Phosphorus is mostly found in _____ and ____ .
What is rocks and minerals.
Water becoming water vapor
What is evaporation
A natural source for CO2.
What is volcano
Animals cannot use nitrogen found in our ___.
What is the atmosphere
what happens when there is to much phosphorus is a plant.
What is plant overgrowth.
Water vapor becoming water droplets
What is Condensation
Huge carbon deposits where stored in this.
What is animal and plant decay
This is rich in nitrogen and is useful for plants.
What is nitrate products
some of the phosphorus soil can be washed into ____ _____.
What is water basin.
water changing the shape of the earth
What is erosion
Today carbon deposits are burned as these.
What is coal oil and natural gas
This process makes nitrogen useable by other organisms
What is nitrogen fixing
Phosphorus makes up what important chemicals.
What is DNA.
______ is taken up By plants through the roots
What is groundwater
Animal use the process of ____ to make more CO2
What is respiration
Higher organisms use nitrogen to make this
What is protein
phosphorus get into a animal.
What is animals eat plants with phosphorus.