What is the coldest outdoor temperature ever recorded?
In Vostock, Antarctica it reached -89.2 degrees C (128.6 F) on July 21, 1983.
Water
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How much of Earth’s water is freshwater?
Less than 3 percent is freshwater.
What would happen if all the ice in the world melted?
Sea level would rise and large parts of the world would disappear. How likely is a complete melt down?
Which weighs more damp air or dry air?
Dry air is heavier. If you’re a pilot you better know this.
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