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The longest cave system on Earth is the Mammoth Cave system in Kentucky, USA.
The Earth has a variety of climates, from polar to tropical.
The Earth's rotation causes the Coriolis effect, which affects the direction of wind and ocean currents.
Earth's atmosphere contains about 04% carbon dioxide.
The highest waterfall on Earth is Angel Falls in Venezuela.
The Earth's crust is divided into 15 major tectonic plates.
The Earth's magnetic field has flipped its polarity many times throughout history.
The Earth's atmosphere helps to keep the planet warm through the greenhouse effect.
The Earth has experienced numerous mass extinctions throughout its history.
Earth’s oceans contain about 97% of the planet's water.
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