Question

The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere?

a planet with a hot atmosphere and strong gravity
a planet with a cold atmosphere and strong gravity
a planet with a cold atmosphere and weak gravity
a planet with a hot atmosphere and weak gravity
anyone, plesae help! I think D.

Answer 1

You posted this yesterday and received a reply. Why are you post again?

Answer 2

I am not sure, i need explantion!

Answer 3

http://www.jiskha.com/display.cgi?id=1438290333

Answer 4

A planet with a cold atmosphere and strong gravity.

Answer 5

Using basic physics, a cold setting would cause gasses to slow down and compact itself, allowing for more and more molecules of gasses to fit into the atmosphere. what determines the size of the atmosphere ultimately depends on the gravitational pull. a higher gravitational pull would have a larger atmosphere because it can collect more gasses compared to a planet with a weaker atmosphere, which can only collect so many gas before losing its grip