DICTIONARY LOOKUP
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The Hottest Planet
Venus is a dim world of intense heat and volcanic activity. Similar in structure and size to Earth, Venus' thick, toxic atmosphere traps heat in a runaway 'greenhouse effect.' The scorched world has temperatures hot enough to melt lead. Glimpses below the clouds reveal volcanoes and deformed mountains. Venus spins slowly in the opposite direction of most planets.

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Watt

A unit of power, equivalent to one joule of energy per second.

wavelength

The distance between successive crests or troughs in a wave.

weathering

The chemical and physical alteration of materials exposed to the environment on or near the surface of a planetary body.

 
Can't find it? Don't understand it? Ask us.
Q
Watt

A unit of power, equivalent to one joule of energy per second.

wavelength

The distance between successive crests or troughs in a wave.

weathering

The chemical and physical alteration of materials exposed to the environment on or near the surface of a planetary body.