<span>The most appropriate answer is thickness. Earth's atmosphere is thicker than Mar's atmosphere. This could be due to the fact that the earth is more massive amd can hold a thicker atmosphere. The Martian atmosphere is composed mostly of carbon dioxide. The atmosphere is thin and cold so liquid water would evaporate or freeze. </span>
<span>Most of the charged particles from the sun are deflected around earth by the Earth's magnetic field.
Inside the Earth lies molten core. High percentage of the core is iron. This iron rotates around the center and create magnetic field. This field extends out of the Earth into the space. It surrounds Earth and protects it from the charged particles. Those particles are diverted to the magnetic poles and they create lights in the atmosphere by reacting with gases in atmosphere. On the north magnetic pole we can see northern lights (aurora borealis) and on the south magnetic pole we can see south lights (aurora australis).</span>
Iran and Saudi Arabia these are just the ones i know
Relative location isn't the exact location so they would have to be using their mental imagery of a map. For example, after you go to fro a place so many times, you will grow accustomed to it thus by using mental imagery of a map would be a good answer.
