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: -Mercury, Venus, Earth, and Mars are the planets closest to the Sun. They are called the inner planets. The inner planets are made up mostly of rock. The outer planets are Jupiter, Saturn, Uranus, and Neptune.

Detailed explanation-3: -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-4: -Sirius is not a planet of the Solar system. It is a star.

Detailed explanation-5: -The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars. After an asteroid belt comes the outer planets, Jupiter, Saturn, Uranus and Neptune.