Answer to Question 1
Airless bodies develop where solar heating is strong and/or gravities are weak. Simply stated, small warm bodies have a better chance of losing their atmospheres because gas molecules are more energetic and need less speed to escape their weak gravities.
Answer to Question 2
The Moon originated from the impact of a large planetary body colliding with early Earth and tearing out a large chunk of molten Earth material that cooled within orbiting range and was kept within orbiting range by gravity.
Oviparity in terrestrial animals.
The Magnetic Fields of Five Planets
This map shows the percentage of Protestants by state in Germany. When compared to the previous map
Income of Adult Children Compared With That of Their Parents
When removing spark plugs, it is wise to arrange them so that they can be compared and any problem ...
Liquid Water Properties compared with n-pentane, nonpolar, non-hydrogen bonding liquid