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How shallow seas appeared and disappeared throughout the Paleozoic Era.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
The use CFCs and other ozone depleting chemicals has been reduced. The ozone hole is starting to recover and may be healed by 2070.
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Describes how the ozone hole forms, what are its effects.
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Describes how the ozone hole forms and what are its effects.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Describes issues caused by increased population growth.
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How human population has grown, some consume a tremendous amount of resources and produce a lot of waste.
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Learn about those most fearsome of storms, tornadoes.
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Identify the outer layers of the Sun.
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Hipervinculo Ciencias de la Tierra y Medioambiente
How valuable minerals and metals are found and determined to be profitable.
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Fantastic images of Earth from space are created from instruments on spacecraft. These images can affect how humans perceive their planet.
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