Cycles Crossword

Rain, snow, sleet, or hail that falls to the ground.
The process by which green plants and some other organisms use sunlight, carbon dioxide, and water to make food.
When liquid water becomes a gas called water vapor
rainfall caused by atmospheric pollution
What is the biological oxidation of ammonia or ammonium to nitrite followed by oxidation of nitrite to nitrate?
What is the process in living organisms involving the intake of oxygen and the release of carbon dioxide?
The conversion of a vapor or gas to liquid?
What is the chemical process in which atmospheric nitrogen is turned into useable forms?
What is the process in which water vapor escapes the leaves of plants
What is the name for the process in which bacteria break down dead organisms
an organism that gets its energy from eating plants or other animals
A non-living component of the ecosystem
A process where algae blooms cause oxygen depletion
Another name for resources like coal and oil
The gas that is produced during combustion
The form of nitrogen used to make plant and animal proteins