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What causes soil erosion, and how to prevent it.
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How various factors affect the cost of resources.
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Examine the composition of matter.
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Hipervinculo Ciencias de la Tierra y Medioambiente
Describes characteristics of asteroids.
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It is the space in the Universe that is expanding, not everything in it.
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Astrobiologists have a variety of ways to look for life elsewhere in the universe.
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Hipervinculo Ciencias de la Tierra y Medioambiente
Aquaponics is a more sustainable way of growing food. Fish produce waste that fertilizes plants, which clean the water. All this happens indoors so the system uses little water and no harmful chemical ...
The Apollo astronauts had a variety of ways of getting rid of their human wastes.
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How questions can be asked and answered to gather information about the natural world.
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Kilauea volcano is one of five shield volcanoes on the Island of Hawaii. Kilauea has been erupting continuously for three decades.
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