Venus is sometimes thought of as Earth's sister planet. In some ways the two planets are very similar. Venus is only slightly smaller than Earth, has a similar density and chemical composition. Yet Venus does not support life like Earth. What is one important reason why Venus cannot support life as we know it?
A. Venus has no atmosphere.
B. Venus' surface temperature is about 480oC.
C. The water on Venus' surface is too hot to support life.
D. Venus' dense clouds keep the planet's temperature very low.