21) Which one of the following rivers originates at Amarkantak?

22) If you travel along the Suez Canal from Port Said to Suez, you will come across several lakes. which of the following lakes is not on this Canal?

23) The Mediterranean lands are often called the Worlds:

24) Which part of Malaysia is most densely populated?

25) Which of the following are active volcanoes?
1. Etna
2. Fujiyama
3. Kilimanjaro
4. Vesuvius
Select the correct answer from the codes given below-