Using the Global Positioning System (GPS), every point on Earth can be given its own unique address—its latitude, longitude, and height. The U.S. Department of Defense developed GPS satellites as a ...
Coral reefs are some of the most diverse and valuable ecosystems on Earth. Home to over 4,000 species of fish, corals, and other marine life, coral reefs cover only 1% of the world’s oceans, but ...
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