People such as doctors, dentists, veterinarians, lawyers, accountants, contractors, subcontractors, public stenographers, or auctioneers who are in an independent trade, business, or profession in which they offer their services to the general public are generally independent contractors.
Mars is the fourth planet from the sun. Mars has  two Moons, Phobos and Deimos. They were both discovered in 1877, by Asaph Hall at the Naval Observatory in Washington DC. Phobos is the larger one of Marsâ moons, and it orbits closer to the surface of Mars than Deimos does.
Mars has two natural satellites, which are its two moons named Phobos and Deimos. The two moons of Mars orbit its atmosphere, just as Earth's moon orbits this planet. The discovery of the two Mars satellites dates back to the late 1800s, owing thanks to astronomer Asaph Hall, who observed the two moons through a telescope at the United States Naval Observatory in Washington, D.C.