The Greenhouse Effect, Which Has Become a Major Ecological Concern

question 51

Multiple Choice

The greenhouse effect, which has become a major ecological concern, is caused by

• A) the increase in atmospheric concentrations of greenhouse gases (CO₂,CH₄, and N2O).
• B) overuse of fertilizers in farming.
• C) the release of heat energy from burning fossil fuels.
• D) the destruction of ozone in the upper atmosphere.
• E) global warming.

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