Gk of solar system.

1. Halley's comet, named after it's discover sir Edmund Halley, last appeared in.
Ans: 1986. Halley's Comet appears at an interval of 76 years.
2. Which is the speediest planet in the solar system.
Ans: Mercury.
3. Name the  hottest planet of the solar system.
Ans: Venus. It has an average temperature of around 896.f
4. Which is the largest planet in our solar system.
Ans: Jupiter
5. Which is the largest moon of the planet Neptune?
Ans: Triton.
6. Where would you find the fastest winds in the solar system.
And: Neptune.
7. What is the approximate distance of solar system from the centre of the galaxy?
Ans: 30000-33000 light years.
8. What percentage of all the matter in the solar system does the sun contains?
Ans: 99.85%
9. What is the cosmic year.
Ans: The time taken (250 million years) by the Sun to complete one revolution around the galactic center.
10. The sun's energy is generated by... ......in its interior.
Ans: Nuclear  Fusion.
11. what do we call the glowing surface of the Sun?
Ans: Photosphere.
12. When do we see the corona of the  Sun.
Ans: During the eclipses.
13. Where  does the thermo-nuclear reaction take place in the Sun.
Ans: At the core of the Sun.
14. Which layer of Earth's atmosphere acts as a shield against the ever blowing solar wind and deflect it away from the Earth?
Ans: The Magnetosphere.
15. Which is the largest of all inner planets?
Ans: The  Earth.
16. By what others name inner planets are known?
And: The  Terrestrial planets.
17. Which planet is named after the Roman God of the Sea?
Ans: Neptune.
18. Which is the largest canyon in the Solar System?
Ans: Mars.
19. Which is the least dense planet?
Ans: Saturn.
20. which is the largest satellite in the Solar system.
Ans: Vesta.