Next, you pull out your trusty scale and weight yourself. Calculate the scale height of the atmosphere for the surface temperature calculated in part a of this question. What evidence is there for the following statements. Consider both direct observational evidence and physical laws. The Solar System is roughly 4.5 billion years old.
Greenhouse gases can cause increased atmospheric temperatures.
The energy of the Sun is generated by fusion reactions in its core. A new comet is found whose orbit comes within 0.4 AU of the Sun at closest approach and is 120 AU from the Sun at the farthest point in its orbit. Assume that the comet nucleus has a radius of 10 km. You are a colonist on the planet Mars. Various information about Mars is given on the cheat-sheet.