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?

Question 5 options:

Venus has no atmosphere.


Venus' surface temperature is about 480oC.


The water on Venus' surface is too hot to support life.


Venus' dense clouds keep the planet's temperature very low.