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Mountains as changing environments

Mountains are elevated landforms whose slopes and summits stand above surrounding terrain. They occur in many shapes, from sharp rocky peaks to broad rounded ridges. Their form reflects both the processes that raised the land and the processes that continue to wear it...

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...