Question

Which is the correct sequence of planets in increasing order of size?
(A) Saturn ,Jupitar, Uranus ,Neptune
(B) Jupitar ,Saturn, Uranus, Neptune
(C) Jupitar ,Uranus ,Neptune, Saturn
(D) Neptune, Uranus ,Saturn ,Jupitar

Answer 1

Hint:
There are eight planets and a dwarf planet present in the Solar System, approximately to scale. Pluto is a dwarf planet at far right. Sun is present at the far left. The planets are, from left, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

Complete answer:
In accordance with NASA, given below is the estimated radii of the eight planets in the solar system, as per the order of size. The radii sizes relative to Earth have also been mentioned for a better reference.
1. Jupiter (69,911 km / 43,441 miles) – 1,120% the size of Earth.
2. Saturn (58,232 km / 36,184 miles) – 945% the size of Earth.
3. Uranus (25,362 km / 15,759 miles) – 400% the size of Earth.
4.Neptune (24,622 km / 15,299 miles) – 388% the size of Earth.
5.Earth (6,371 km / 3,959 miles)
6.Venus (6,052 km / 3,761 miles) – 95% the size of Earth.
7.Mars (3,390 km / 2,460 miles) – 53% the size of Earth.
8.Mercury (2,440 km / 1,516 miles) – 38% the size of Earth.
Jupiter is referred as the behemoth of the Solar System and is believed to be responsible for influencing the path of smaller objects which
drift by its massive weight. At times it sends comets or asteroids into the inner solar system, while at times it will divert those away.
Saturn is most famous for its rings, as well as it hosts dozens of moons — including Titan, having its own atmosphere. Joining it in the outer solar system are Uranus and Neptune,having the atmospheres of hydrogen, helium and methane. Uranus also rotates opposite to other planets present in the solar system.
The inner planets include Venus (once considered Earth’s twin, at least until its hot surface was discovered) followed by Mars ( planet where liquid water could have flowed in the past); Mercury (that despite being very close to the sun, has ice at its poles) and the Earth, that is the only planet where human life exists well.

Hence, Option B is the correct answer.

Note-
The Solar System is described as the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest tend to be the eight planets, along with the remainder being smaller objects, the dwarf planets as well as small Solar Systembodies.