100+ IAS Study Material Free Download Pdf - 1

Question: 1

What is a planet?

A planet is a dark, non luminous body moving around a star.

Question: 2

What are rocky planets?

Mercury, Venus, Earth and Mars are composed mostly of dense rocks with small amount of gases. Hence, these are called rocky planets.

Question: 3

Which planet is very cold?

Pluto is very cold because of its distant position from the sun.

Question: 4

Name the continents of the world?

The seven continents:

Asia

Africa

North America

South America

Europe

Antartica

Australia

Question: 5

What are gaseous planets?

The Jupiter, Saturn, Uranus and Neptune are composed mostly of gases with small amount of rocks. Hence these planets are mainly called gaseous planets.