Biology for IGCSE & O level - Human Influences On Ecosystems (Section 5 - No. 12)
What is the primary cause of the enhanced greenhouse effect?
The depletion of the ozone layer
An increase in the concentration of greenhouse gases
A decrease in solar radiation
The melting of polar ice caps
Explanation
The enhanced greenhouse effect is primarily caused by a rise in the concentration of greenhouse gases due to human activities.
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