What is the process plants use CO2 in?
What is Photosynthesis?
What is Phosphorus mostly contained in?
What is minerals and rocks?
How much nitrogen gas does our atmosphere have?
What is 78%
What uses fertilizer to help replace for plants?
What is soil?
What is the process animals use oxygen to make more CO2?
What is Respiration?
Phosphorus moves between what two things in the phosphorus cycle?
What is soil and plants?
Animal waste decay the action of bacteria creates what two products?
What is nitrate and ammonia?
Where is nitrogen usually limited?
What is the ocean?
What are the deposits that are burned as fossil fuel?
What is coal, oil, and natural gas?
What is another source of phosphorus that is in water and is man-made?
What is pollution?
What is the bacteria called that directly uses nitrogen in our atmosphere and fixes it so other organisms can benefit?
What is nitrogen-fixing?
What is the process where elements, chemical compounds, and other forms of matter are passed from
one organism to the other?
What is Biogeochemical cycle?
What is another natural source for CO2?
What is volcanoes?
What does too much phosphorus in water lead to?
what is plant overgrowt?
What can animals and plants not directly uses nitrogen found in our atmosphere?
What is nitrogen?
Which element is in each of the cycles?
What is oxygen?
Too much CO2 in the atmosphere may cause what?
What is the green house effect?
What helps return sulfur for the next generation of phosphorus in soil?
What is animal waste?
What is the bacteria that soil can break down the ammonia into gaseous form of nitrogen?
What is denitrification?
What is the chemical substance that an organism needs to sustain life?
What are nutrient?