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Category: Uncategorized
Rivers and the landscapes they connect
Rivers carry water through landscapes and connect places that may look very different from one another. A narrow upland stream can eventually join a broad channel crossing a plain. Along the way, the flow receives water from smaller tributaries, rainfall, and groundwater. The boundaries of the surrounding drainage basin help explain why events far upstream […]
Whales: Giants of the Ocean
Whales: Giants of the Ocean Whales are among the largest and most remarkable animals on Earth. These marine mammals live in oceans around the world, from warm tropical waters to the cold seas surrounding the poles. Life Beneath the Surface Although whales spend their lives in water, they breathe air through blowholes located on top […]