Question detail
Describe two ways in which deforestation can affect the carbon cycle.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Carbon dioxide and methane as greenhouse gases
Question
Describe two ways in which deforestation can affect the carbon cycle.
Answer
Firstly, deforestation reduces the number of trees that can absorb carbon dioxide during photosynthesis, leading to higher atmospheric carbon dioxide levels. Secondly, the burning or decomposition of trees releases stored carbon back into the atmosphere, further increasing carbon dioxide concentrations.
Explanation
This question assesses the student's ability to connect deforestation with its effects on the carbon cycle, requiring them to articulate both the reduction of carbon absorption and the release of carbon from biomass.
Common mistake
Deforestation and Carbon Dioxide
Students often state that deforestation only increases carbon dioxide by burning trees, neglecting the role of reduced photosynthesis.
Emphasize that deforestation increases carbon dioxide both by burning trees and by reducing the number of trees available for photosynthesis, which absorbs carbon dioxide.
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