Multiple choice

Which gas in the atmosphere has the most influence on day-to-day weather changes?

  1. ozone

  2. oxygen

  3. water vapor

  4. carbon dioxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water vapor is the most important gas for day-to-day weather because it is responsible for condensation, cloud formation, precipitation, and latent heat transfer. While other gases like carbon dioxide and ozone play roles in long-term climate, water vapor directly drives daily weather phenomena.

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