1. Which planet is the closest planet to earth? Ans:- Thank you
2. Where is the image of an object formed in the human eye? Ans:- Retina
3. By which method is the transmission of heat from the Sun to the Earth? Ans:- Radiation
4. DNA Who found out the double coil? Ans:- Watson and Crick
5. The intensity of sound is measured in which of the following? Ans:- Decibel
6. What is beekeeping called? Ans:- Apiculture
7. What is the first page of a website called? Ans:- Homepage
8. Which mirror is used to see the rearview in trains? Ans:- Convex
9. What is the speed of sound in the air under normal conditions? Ans:- 2 m/s second
10. Which is the only planet that rotates on its axis from east to west? Ans:- Thank you
11. Which is the highest gas in the sun? Ans:- Hydrogen
12. Which is the brightest planet to be seen from earth? Ans:- Thank you
13. What is the age of the solar system? Ans:- 4.6 billion years
14. Which tail star appears after 76 years? Ans:- Heli-tailed star
15. What is the distance between the earth and the sun? Ans:- 15 million kilometres
16. How long does it take for sunlight to reach the earth? Ans:- 500 seconds
17. When and where did India conduct its first nuclear test? Ans:- On 14th May 1974 in Pokhran (Rajasthan)
18. What is the part of the computer that we can touch called? Ans:- Hardware
19. Which is the best gas used in the treatment of cancer? Ans:- Radon
20. Which mineral is found in monazite sand? Ans:- Thorium
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