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Which country is the world leader in wind energy? Is it always a good idea to turn off the lights when you leave a room? The truth about these and other energy facts may surprise you.
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Is Earth perfectly round? Where is the driest place on Earth? There's a lot to know about our home planet.
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Where is most of Earth's water? Is most of the fresh water in ice? It turns out water is pretty interesting.
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Do big cities have ecosystems? What does it take to survive in the desert? Earth is full of different ecosystems.
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How does air help and protect us? What's living in the air? Get the answers to these questions and more!
Vital Signs of the Planet