1. Which planet is known as the Red Planet

A) Venus

B) Mars

C) Jupiter

D) Mercury

2. The Earth has how many natural satellites

A) Two

B) Three

C) Four

D) One

3. Which planet is closest to the Sun

A) Venus

B) Earth

C) Mercury

D) Mars

4. Which is the largest planet in the solar system

A) Saturn

B) Jupiter

C) Earth

D) Neptune

5. Which planet is known as the Morning Star

A) Venus

B) Mars

C) Saturn

D) Uranus

6. The Sun is a

A) Planet

B) Satellite

C) Comet

D) Star

7. Which planet is called the Blue Planet

A) Neptune

B) Earth

C) Venus

D) Mars

8. Which force keeps planets around the Sun

A) Magnetic force

B) Wind force

C) Gravitational force

D) Frictional force

9. The path of Earth around the Sun is called

A) Axis

B) Ring

C) Layer

D) Orbit

10. Day and night are caused by

A) Revolution of Earth

B) Rotation of Earth

C) Movement of Moon

D) Clouds in sky

11. Seasons are mainly caused by

A) Rotation of Earth

B) Shape of Moon

C) Ocean currents only

D) Revolution and tilt

12. The imaginary line passing through the poles is

A) Orbit

B) Axis

C) Equator

D) Tropic

13. The Equator divides Earth into

A) North and South

B) East and West

C) Upper and lower

D) Land and water

14. Which layer protects Earth from harmful UV rays

A) Troposphere

B) Mesosphere

C) Core layer

D) Ozone layer

15. Which is the outermost layer of Earth

A) Mantle

B) Core

C) Crust

D) Inner core

16. The thick middle layer of Earth is called

A) Crust

B) Mantle

C) Core

D) Atmosphere

17. Which part of Earth is mainly made of iron and nickel

A) Crust

B) Mantle

C) Lithosphere

D) Core

18. The atmosphere is mainly made of

A) Hydrogen

B) Helium

C) Nitrogen

D) Carbon only

19. Which gas is most important for breathing

A) Nitrogen

B) Oxygen

C) Hydrogen

D) Argon

20. Which layer of atmosphere has weather changes

A) Stratosphere

B) Thermosphere

C) Exosphere

D) Troposphere

21. Which layer contains the ozone layer

A) Stratosphere

B) Troposphere

C) Mesosphere

D) Core

22. The Moon shines because it

A) makes own light

B) has fire inside

C) reflects sunlight

D) gets city lights

23. The first human to step on the Moon was

A) Yuri Gagarin

B) Neil Armstrong

C) Rakesh Sharma

D) Edwin Hubble

24. Which planet is called Earth's twin

A) Mars

B) Jupiter

C) Venus

D) Uranus

25. Which planet is famous for its Great Red Spot

A) Mars

B) Jupiter

C) Saturn

D) Neptune