Clouds Facts
Clouds Facts
- Clouds can reflect so much ultraviolet light from the sunlight they dramatically increase the ultraviolet reaching the ground.
- Sunbathing on sunny days with clouds in the sky can be dangerous.
- The biggest clouds are cumulonimbus, climbing up to 9.7 kilometers (6 miles) high and holding up to half a million tons of water.
- Cloud droplets are extremely small. They are about ten thousandth of an inch across, a thousand times smaller than a raindrop.
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