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Apart from humans the only land animal that cries is the elephant.
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Your eyes make 4.5 liters (8 pints) of tears a year – they keep your eyes wet even if you’re not crying.
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A bolt of lightning is about 54,000°F (30,000°C); six times hotter than the Sun.
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The moon is 27% the size of the Earth.
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Oxygen is the most abundant element in the Earth’s crust, waters, and atmosphere (about 49.5%).
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Sunlight can penetrate clean ocean water to a depth of 240 feet.
Apart from humans the only land animal that cries is the elephant.
Your eyes make 4.5 liters (8 pints) of tears a year – they keep your eyes wet even if you’re not crying.
A bolt of lightning is about 54,000°F (30,000°C); six times hotter than the Sun.
The moon is 27% the size of the Earth.
Oxygen is the most abundant element in the Earth’s crust, waters, and atmosphere (about 49.5%).
Sunlight can penetrate clean ocean water to a depth of 240 feet.