1. Which is smallest continent of world ?

Answer: Australia

2. Which is the lightest gas ?

Answer: Hydrogen

3. Which is Longest road tunnel in the World ?

Answer: Lærdal Tunnel (Norway - 24.51 kilometre)

4. Which is the largest sea in the world ?

Answer:

Philippine Sea

5. Which is the brightest planet ?

Answer: Venus

6. Longest rail tunnel in the world ?

Answer: Seikan Tunnel (Japan - 53.9 Km)

7. Which is Largest forest state of India ?

Answer: M.P.