As Humans Continue to Use Fossil Fuels as a Primary

question 50

Multiple Choice

As humans continue to use fossil fuels as a primary source of energy, the amount of carbon entering the atmosphere from fossil fuel combustion will continue to increase dramatically. What is the effect of large-scale deforestation on the carbon in the atmosphere?

• A) Because trees are a major sink for atmospheric carbon, fewer trees will result in less carbon being removed from the atmosphere for photosynthesis.
• B) As trees are removed, there is more room for carbon to enter the soil directly and be used by other plants.
• C) The large-scale removal of forests does not have any real effect on atmospheric carbon, because carbon dioxide is not stored in trees.
• D) Because trees produce carbon dioxide, the amount of carbon in the atmosphere will decrease with their wide-scale removal.

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