Animals use oxygen in the process of ____ to make more Carbon dioxide?
What is respiration?
Which two factors are present in this cycle?
What is Biological and Physical/Chemical?
Which factor is not present in this cycle?
What is geological?
True or False: phosphorus is found in the found in the free state of nature.
What is False?
Plants use carbon dioxide in the process of _____ to make sugar and oxygen?
What is photosynthesis?
Water from oceans and lakes evaporates and then _____ to form clouds?
What is condenses?
How much of our atmosphere is nitrogen?
What is 78%
What essential chemical does phosphorus make up?
What is DNA?
More carbon dioxide is released in the atmosphere today than in the past because of _____?
What is the burning of fossil fuels?
Animal waste decay creates which two products rich in nitrogen?
What is ammonia and nitrate?
Too much phosphorus in water leads to _________?
What is plant overgrowth?
The _____ is the main regulator of carbon dioxide in the atmosphere because carbon dioxide dissolves easily in it?
What is the ocean?
True or False: Animals and plants can use all the nitrogen found in our atmosphere.
What is False?
Some of the phosphorus in soils can be washed away into water ____?
What is basins?
What is the photosynthesis equation?
Carbon dioxide + Water = Sugar + Oxygen
What is the name of the bacteria that can break down ammonia into the gaseous form of nitrogen?
What is Denitrification Bacteria?
What is one of the man made ways for phosphorus to enter water?
What is pollution?