HARD
8th CBSE
IMPORTANT
Earn 100

The orbits of planets are nearly circular. What is the shape of a comet’s orbit?

Important Questions on Stars and the Solar System

HARD
8th CBSE
IMPORTANT

What makes earth the unique planet of the solar system?

HARD
8th CBSE
IMPORTANT

How are day and night formed on earth?

HARD
8th CBSE
IMPORTANT

Which planet is called the morning or evening star? Why is it called so?

HARD
8th CBSE
IMPORTANT

What are artificial satellites? Name some artificial satellites launched by India.

EASY
8th CBSE
IMPORTANT

Astronauts might visit Mars one day. Why would they need to take their own air?

HARD
8th CBSE
IMPORTANT
Why is earth referred to as the ‘blue planet’?
MEDIUM
8th CBSE
IMPORTANT

What are the three main layers of the earth?