SOLAR SYSTEM

Detailed explanation-1: -Statement 1: Mercury, Venus, Earth and Mars are known as inner planets. They have less number of moons or no moons. Statement 2: Jupiter, Saturn, Uranus and Neptune are known as outer planets.

Detailed explanation-2: -The outer planets are gas giants Jupiter and Saturn and ice giants Uranus and Neptune. Beyond Neptune, a newer class of smaller worlds called dwarf planets reign, including longtime favorite Pluto. Thousands more planets have been discovered beyond our solar system.

Detailed explanation-3: -Inner planets: the four closet to the sun. They are also called the “terrestrial planets” because they are made mostly of rock and metal. Outer planets: the four farthest from the sun. They are also called the “gas giants” because they are made mostly of gases.