1. Which is the largest sea in the world ?

Answer:

Philippine Sea

2. Which is longest river of India

Answer: Ganges

3. Longest rail tunnel in the world ?

Answer: Seikan Tunnel (Japan - 53.9 Km)

4. Which is largest Dome in India ?

Answer: Gol Gumbaz (Karnataka)

5. Which is the Densest populated State of India ?

Answer: West Bengal

6. Which is Longest Dam in India ?

Answer: Hirakod Dam (Orissa)

7. What is the name of brightest star ?

Answer: Sirius