1. Which is the highest dam in India ?

Answer: Tehri Dam on Bhagirathi River in Uttarakhand (Height of 260 metres)

2. Which is the highest waterfall in the world ?

Answer: Angel, Venezuela

3. Which is highest dam in world ?

Answer:

Jinping-I Dam - 305 m (1,001 ft) in China on Yalong river.
Second Highest is Nurek Dam 300 m (980 ft) Tajikistan on Vakhsh river.

4. Which is the highest Plateau ?

Answer: Pamir, Tibet

5. Which is the shortest day in the year ?

Answer: December 22

6. Which is largest Delta of India ?

Answer: Sundarban (W. Bengal)

7. Which is the biggest museum in the world ?

Answer: British Museum, London