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Natural gas is a clean source of energy, but fracking comes with many environmental drawbacks.
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What nonrenewable energy resources and fossil fuels are and how they form, and the drawbacks of using nonrenewable energy resources.
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Snowflakes are all different because they form under slightly different conditions.
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Mountain glaciers, including on Mount Kilimanjaro, are disappearing as the atmosphere warms.
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Migrating animals use Earth's magnetic field for navigation.
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Weather forecasts beyond a week or two are mid-range forecasts. They must take into consideration other factors like ocean temperature and greenhouse gas content. In 2013, the active hurricane season ...
Describes the nitrogen cycle.
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Describes the nitrogen cycle.
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Nicholas Steno made many contributions to natural science, particularly to stratigraphy and to the idea of uniformitarianism.
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Much of the ocean is unknown, and every trip to the deep finds something new like vampire squid and angler fish with bioluminescent lures.
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