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Carbon cycles through each environmental sphere. Give one example of a sphere in which carbon is found and explain how it enters that sphere.
Atmosphere, biosphere, hydrosphere, geosphere
When organisms die, which members of the food chain break them down and return carbon to the soil?
Decomposers
In what form does carbon exist in the atmosphere?
carbon dioxide
How are fossil fuels formed?
When decomposing organisms are exposed to pressure, high temperatures, and bacteria over hundreds of millions of years.
What process removes carbon from the atmosphere?
photosynthesis
What necessary life process done by plants and animals releases carbon into the atmosphere?
cellular respiration
True or False: Carbon is only released from living organisms on land.
False
What is the name for the process of burning fossil fuels that releases carbon into the atmosphere?
combustion
Where does decomposition in aquatic environments occur?
In the sediments
True or False: Soil bacteria only decompose dead organic material from animals.
False
