21) Dardanelles strait is located in which country?
(A) Turkey
(B) Indonesia
(C) USA
(D) Canada
22) Palk strait is located in __________
(A) Pacific Ocean
(B) Arctic Ocean
(C) Indian Ocean
(D) Atlantic Ocean
23) Which is the longest strait of the world?
(A) Palk strait
(B) Malacca strait
(C) Messina strait
(D) Bosphorus strait