1. 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.

2. Which is largest continent ?

Answer: Asia

3. Which state is largest by Population ?

Answer: Uttar Pradesh

4. Which is smallest continent of world ?

Answer: Australia

5. Which is smallest planet ?

Answer: Mercury

6. Which is the highest Plateau ?

Answer: Pamir, Tibet

7. Which is Longest Dam in India ?

Answer: Hirakod Dam (Orissa)