The Himalayas, Earth’s highest mountains, grow 1–2 cm per year.
Our Earth has traveled more than 5,000 miles (8,047 km) in the past five minutes.
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Planting trees, cleaning up trash, and learning about nature are great ways to help protect our planet. We can also think carefully about everything we buy. What does it cost the Earth? Do we really need it? We have the power to help keep Earth “green” for our human family.