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Sunlight barely reaches below 200 meters in the sea

There is rarely any significant light deeper than 200 meters in the ocean, and sunlight does not reach below 1,000 meters.

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So little light gets past 200 meters that photosynthesis is no longer possible. Below 1,000 meters lies the aphotic zone, which sunlight never reaches.

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A tsunami can cross the ocean as fast as a jet

Over deep water, tsunami waves may travel as fast as jet planes, slowing only when they reach the shallows.

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Earth is about 4.54 billion years old

Radiometric dating places Earth's age at approximately 4.54 billion years.

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A cloud can weigh around a million pounds

A typical fair-weather cumulus cloud can contain roughly 1.1 million pounds of water.

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Sunlight barely reaches below 200 meters in the sea

Why it is true

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More from science facts

A tsunami can cross the ocean as fast as a jet

Earth is about 4.54 billion years old

A cloud can weigh around a million pounds

Give curiosity one minute.