单词：testing for oil
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EXPLORATIONS - A Visit to Volcanoes National Park and Haleakala National Park MARIO RITTER: Welcome to the VOA Special English program EXPLORATIONS. Im Mario Ritter. Today, Steve Ember and Sarah Long tell us about two of the most unusual national par
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A stretch of road known as America's loneliest highway seems the perfect place to ignore the speed limit. But for those who slow down, Nevada's high desert reveals its unexpected side. Great Basin National Park is home to Lehman Caves. Lehman Caves w
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A discovery of a mummified forest that's between two and 10 million years old is giving scientists a new window on climate change. Joel Barker, a research scientist at the Byrd Polar Research Center at the Ohio State University, discovered the mummif
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A senior Indonesian delegation is visiting Australia to learn more about fire prevention and conservation strategies. Their country often suffers from massive forest fires that spread smoke and ash around Southeast Asia. A wind change opens up a 10k
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