Which statement describes the density of the inner planets? All the inner planets are dense.
The inner planets are less dense than the outer planets.
Earth is dense, while the other inner planets are not.
Mercury and Venus are dense, while Earth and Mars are not.

All inner planets are dense

Explanation: Mercurius, Venus, Earth and are more dense than Jupiter  

and Saturnus

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

c.           is the correct answer