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Weather Front? Basic

Describes the fronts that occur when two air masses collide.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Weather Front? At grade

Describes the fronts that occur when two air masses collide.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Weather Forecastin? Basic

Satellites and other modern technological devices have improved weather forecasting tremendously in the past 25 years. The ability to more accurately predict the weather saves billions of dollars each ...

Water Pollutio? Basic

Describes the sources of water pollution.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Water Pollutio? At grade

Describes the sources of water pollution.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Water Distributio? Basic

How water is distributed throughout the world.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Water Distributio? At grade

How water is distributed throughout the world.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Wandering Pole Plagu? At grade

Learn how the scientific community responded to Wegener's continental drift hypothesis and how it came to be accepted.

It is an educational content of CK-12 Foundation (to access some of the CK-12 cont ...

Volcanoes at Plate Boundarie? Basic

Volcanoes most often occur at plate boundaries.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Volcanoes at Plate Boundarie? At grade

Volcanoes most often occur at plate boundaries.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

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