16. The World's major commercial fishing grounds are located in the ________
17. The islands of Seychelles are located in the ________
18. Which one of the following is the correct sequence of the following topographical features found from upper to lower course of a river?
19. The main part of water in coastal areas of ocean which is located near the main region of continents are called
20. Which of the following cities is incorrectly matched to the river on which it is situated?
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