Question 1. Which Star Is At The Center Of Our Solar System?

Answer :

Sun.


Question 2. What Is The Diameter Of Sun?

Answer :

1,392,684 km (865,374 mi).


Question 3. How Many Stars Are In The Milky Way?

Answer :

more than 100 billion.


Question 4. When Was Sun Born?

Answer :

roughly 4.6 billion years ago.


Question 5. Which Planet Is Known As The Morning Star Or The Evening Star?

Answer :

VENUS.


Question 6. What Is The Diameter Of Earth?

Answer :

7,918 miles (12,742 km).


Question 7. Which Is The Largest Planet In Our Solar System?

Answer :

JUPITER.


Question 8. Which Planets Have Rings Around Them?

Answer :

Saturn,Jupiter, Uranus, and Neptune (4 planets).


Question 9. Which Is The Coldest Andsmallest Of All Planets?

Answer :

PLUTO


Question 10. What Is The Average Distance Of Moon From Earth?

Answer :

238,855 miles (384,400 km).


Question 11. How Much Larger The Sun Is Than Earth?

Answer :

300000 times.


Question 12.  When Was The First Man Made Object Sent Into Space?

Answer :

1957.


Question 13. Who Was The First Person To Reach Space?

Answer :

Yuri Gagarin, in 1961.


Question 14. Who Was The First Woman To Reach Space?

Answer :

Valentina Tereshkova, in 1963.


Question 15. Who Was The First Person To Set Foot On The Moon?

Answer :

Neil Armstrong


Question 16. How Long A Solar Eclipse Can Last?

Answer :

7 and a half minutes.


Question 17. At How Mush Speed Moon Moves Across The Sun?

Answer :

2,250 km per hour


Question 18. Which planet in the Solar System has the highest density?

Answer

Earth


Question 19. Which of the following planets in the Solar System takes the shortest revolution?

Answer 

Mercury


Question 20. Arrange the planets according to their revolution velocity

I. Mars

II. Jupiter

III. Uranus

IV. Earth

Code:

A. I, II, IV, II

B. IV, I, II, III

C. I, III, II, IV

D. IV, III, II, I

Correct Answer is C