Because it has less distance to travel around the Sun.
None.
Because it is nearer to the Sun than all of the other planets. Its orbit is inside that of all of the other planets, so it shorter.
Because it is closer to the sun so has a shorter orbit path than the other planets
mercury is very very heater than other planets
No, in fact many planets are hotter than it. the warmest is Venus and then Mercury.
Earth, Venus, and Mercury are also inner planets.
It is the second smallest of the 8 planets, only larger than Mercury.
For planets, only Mercury lacks one.but you fool and suck
Inner planets have a radius orbit shorter than the orbit of Jupiter. Outer planets are all the other planets of the solar system.
All of them except Mercury and Venus.
2. Mercury and Venus. All other planets are past the earth.
Mercury is smaller than Mars, all of the other planets are larger. That means Venus, Earth, Jupiter, Saturn, Uranus, and Neptune are all larger than Mars.