All of them
Mars
Kepler's third law of planetary motion states that the time taken for a planet to revolve around the sun (or its period) is proportional to its distance from the sun. Therefore the closer the planet is to the sun, the faster its orbit. So the answer is: the closest planet to the sun which is......Mercury.
You might be thinking of Pluto, a dwarf planet, orbits the sun every 247.68 years. Pluto, however, is not a planet.
This would depend on the planet, earth takes a year to go round the sun but that is because we named the time it takes for us to go round the sun a "year". The closer to the sun a planet is the less time it takes to circle it.
Planets have elliptical orbits around the sun.
An orbit.
The planet mercury orbits closest to the sun.
An orbit is the path followed by a planet as it travels regularly round the Sun. The Earth follows an orbit and completes one journey round its orbit in a year.
Every planet in our solar system travels around the sun on its orbit which is a invisible path that goes right around the sun. feel free to add anything
Planets go faster if they are closer to the Sun. No only does the closest, Mercury, get round in the shortest time, it also travels at the fastest speed. The explanation lies in Kepler's laws of planetary motion.
The dwarf planet Pluto. No "planet" takes that time.
A satellite.
Mars
An elliptical orbit round the Sun.
haha
Its orbit.
Orbit.