Oceanography (The Hydrosphere) MCQ Questions with Answers

Ques: 81

Which one of the following rivers of Asia flows towards the south ?

(A) Amur (B) Lena (C) Ob (D) Salween

Ques: 82

The largest river of Asia is –

(A) Indus (B) Brahmaputra (C) Yangtze (D) Hwang Ho

Ques: 83

Match the drainage basins labelled as A,B,C and D with the names listed below and select the correct answer using the code given below the names of the drainage basins. Name of drainage basins:

Ganga-Brahmaputra
Indus
Parana
Zambezi

Codes:

A B C D

(A) 3 1 2 4 (B) 1 3 4 2 (C) 1 3 2 4 (D) 3 1 4 2

Ques: 84

Main Source of Salinity of the Sea is –

(A) Rivers (B) Land (C) Wind (D) Ash ejected from the Volcano

Ques: 85

The highest salinity is found in :

(A) Dead sea (B) Red sea (C) Great Salt Lake in the U.S.A. (D) Lake Van in Turkey

Ques: 86

Which one of the following denotes water salinity gradient?

(A) Thermocline (B) Halocline (C) Pycnocline (D) Chemocline

Ques: 87

Which of the following seas has the highest average salinity?

(A) Black Sea (B) Yellow Sea (C) Mediterranean Sea (D) Dead Sea

Ques: 88

Which one of the following salts contributes maximum to the salinity of sea water:

(A) Calcium sulphate (B) Magnesium chloride (C) Magnesium sulphate (D) Sodium chloride

Ques: 89

Where is Great Salt Lake located ?

(A) Iran (B) U.S.A. (C) India (D) Turkey

Ques: 90

The average salinity of water of Arabian Sea is-

(A) 25 ppt (B) 35 ppt (C) 45 ppt (D) 55 ppt