Question

question 13 of 20 :
select the best answer for the question.

1. whats the greenhouse effect?

a. the release of extra moisture from water vapor
b. the regulation of atmospheric and surface temperatures
c. human - caused global warming
d. the trapping of warm air in cities
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Explanation:

• Option A: The greenhouse effect is not about releasing extra moisture from water vapor. Water vapor is a greenhouse gas, but the effect is about temperature regulation, not moisture release.
• Option B: The greenhouse effect involves greenhouse gases (like CO₂, water vapor) trapping heat in the atmosphere, which regulates atmospheric and surface temperatures (keeping Earth warm enough for life). This matches the definition.
• Option C: Human - caused global warming is climate change due to human activities enhancing the greenhouse effect, not the greenhouse effect itself. The greenhouse effect is a natural (and now enhanced) process.
• Option D: The trapping of warm air in cities is urban heat island effect, not the greenhouse effect.

Answer:

B. The regulation of atmospheric and surface temperatures