Carbon cycle
Marine organisms store CO32-(CARBONATE) in their shells eventually becoming ______.
What is Sedimentary Rock
nitrogen gas is converted into nitrate and ammonium through this
nitrogen-fixing bacteria and when lightning strikes
The atmosphere contains this percent of oxygen.
What is 21 percent?
what is eating other animals
What chemical reaction takes in CO2 and what chemical reaction releases CO2?
What is photosynthesis, What is cellular respiration?
When animals eat plants containing nitrogen, this is how it returns back to the soil
animal waste and decaying plants and animals
Plants release oxygen through this process.
What is photosynthesis?
minerals release phosphorus
what is weathering
The process of ______ releases CO2 into the atmosphere through the decay of organic-matter in soil.
What is decomposition?
denitrification is
when nitrate goes back into the atmosphere as nitrogen gas
The chemical symbol for Oxygen in its molecular form.
What is O2?
too much phosphorus in water
what is toxic algae bloom
What 2 processes release CO2 by burning, not including fossil fuels?
What is volcanic eruptions and forest fires?
nitrification is
when ammonium turns into nitrite and nitrate through nitrifying bacteria
The chemical equation for respiration.
What is C6H12O6 + O2 = CO2 + H2O?
what is repairing cells and reproducing DNA and RNA
What human activities affect the greenhouse effect.
What is fossil fuels, land clearing.
Oxygen protects the Earth from harmful ultraviolet rays in this way.
What is oxygen in the form of ozone?
atomic number and symbol for phosphorus
what is 15 P