51) Which is the shortest river of the world?
(A) Mekong
(B) Lena
(C) Congo
(D) Roe River
52) Which is the shortest river in the world with a total length of 98 km?
(A) Amur (Siberia)
(B) Roe (Montana)
(C) Danube (Slovakia)
(D) Congo (Zaire)
53) River Nile originates from:
(A) Lake Nyasa
(B) Cherangany Hills
(C) Lake Victoria
(D) Springs in Kenya