Why are the surface of Venus and the lower atmosphere adjacent to it heated to high temperatures?

The high temperature of the planet’s surface (about 480 ° C) is explained by the greenhouse effect. The sun’s rays pass through the atmosphere and, over a long Venusian day, significantly heat the planet’s surface. However, the thermal radiation from the surface of Venus, including that coming from its interior, almost does not transmit carbon dioxide from the dense atmosphere. As a result, the surface of Venus and the adjacent lower atmosphere heats up to high temperatures.

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