HARD
Earn 100

Which planet takes maximum time to revolve around the sun and which planet takes the least time?
Important Questions on Our Earth
MEDIUM

EASY
What is the name of thick bright layer around the sun?

MEDIUM


EASY
Mention any two achievements of Hubble Telescope.

EASY

EASY

MEDIUM

HARD

EASY
Why do tail of comets formed, when it comes closer to sun?

EASY
Which of the following is not a natural satellite?

MEDIUM
What is an artificial satellite? Name any two types of artificial satellite and state their functions.

MEDIUM





HARD

EASY
Which satellite is used for geographical survey?

EASY
The earth takes year to make a complete revolution around the sun whereas Pluto takes nearly of our earth years to orbit the sun. What is the main reason for this?

EASY
Stars twinkle but, we do not see the twinkling of planets. Give reason.

