Question

Match the items in Column I with that in Column II.

Column I	Column II
1.Planet nearest to the sun	a) Jupiter
2.Largest planet	b) Saturn
3.Lightest planet	c) Neptune
4.Farthest planet	d) Mercury

Answer 1

Hint: We need to understand the different parameters of study of the eight planets in our solar system such as the radius, the distance from the sun, the density of the planet, the order of arrangement to find the solution to this problem and match the columns.

Complete Solution:
We know that all the given planets in the options are the planets in our solar system. There are eight planets and Pluto that revolves around the sun which is the power source of our solar system. It is believed that the solar system was formed by a burst of the sun some time back in time, very similar to the big bang. The planets are the results of large pieces from the sun which started revolving due to the strong gravitational force of the Sun.

The planets, being thrown out from the sun, have random sizes and arrangements in the solar system. The planets are arranged in the order – Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune – from the sun.

Planet	Distance from sun (in million km)	Radius of the planet (in km)	Mass of the planet (\[{{10}^{24}}\]kg)
Mercury	57.91	2439.7	0.3285.
Venus	108.2	6051.8	4.867
Earth	149.6	6371	5.972
Mars	227.9	3389.5	0.639
Jupiter	778.5	69911	1898
Saturn	1434	58232	568.3
Uranus	2871	25362	86.81
Neptune	4495	24622	102.4

The above table gives the required information on each planet. Even though mercury is the lightest in terms of mass, Saturn is considered to be the lightest because its mass density is the least. It has very low density such that Saturn can float in water. We can match the column I with the column II as –

COLUMN I	COLUMN II
Planet nearest to the sun	Mercury
Largest planet	Jupiter
Lightest planet (density)	Saturn
Farthest planet	Neptune

This is the required solution.

Note:
The distance from the sun to each planet increases from Mercury to Pluto in a large scale. All the planets have an elliptical revolving path, except for Pluto, which is a dwarf planet (too smaller than other planets) and has a somewhat irregular revolving path.