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21,6 Nutrient Cycling in an Ecosystem
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How are burning of fossil fuels and volcanic eruptions similar with respect to their effects on the carbon cycle?
Both add carbon to the atmosphere.
In the food web, which organisms release the carbon from dead things back into the environment?
decomposers
one way humans can affect the carbon cycle
Exhalation of carbon dioxide,
How are fossil fuels related to the Carbon cycle?
Dead plants filled with carbon can become fossil fuels
one way that carbon enters the atmosphere
Vehicle emissions/Exhaust, respiration, decomposition
Carbon is used by plants during
photosynthesis
Why is the carbon cycle important?
It continuously reuses and recycles carbon in the ecosystem, enables energy flow throgh ecosystem, maintains the correct concentration of CO2 in atmosphere
In what process is Carbon transformed into chemical energy?
photosynthesis
How does the carbon in grass become part of a lion?
The carbon ends up in the lion's food chain.
In the carbon cycle, producers take in the gas
CO2
How do living organisms return carbon to the atmosphere in the carbon cycle?
decomposition and respiration
What does not produce carbon dioxide? (Burning Fossil Fuels/Animal respiration/Photosynthesis/Plants decaying)
Photosynthesis
Combustion is another word for
burning
Which one of these does not add CO2 to the atmosphere? (cooking with gas-planting trees-burning wood-riding in a bus)
planting trees
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