hydrosphere & oceanography section 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Between India and East Asia, the navigation time and distance can be greatly reduced by which of the following?

1. Deepening the Malacca Straits between Malaysia and Indonesia.
2. Opening a new canal between the Gulf of Siam and the Andaman Sea.

a) Neither 1 nor 2

b) Both 1 and 2

c) Only 1

d) Only 2

Question : 2

Sargasso is related to the Ocean, that ocean is

a) Southern Atlantic

b) Southern Pacific

c) Northern Pacific

d) Northern Atlantic

Question : 3

On the planet Earth, most of the fresh water exists as ice caps and glaciers. Out of the remaining fresh water, the largest proportion

a) Exists as soil moisture

b) Exists as ground water

c) is found in atmosphere as moisture and clouds

d) is found in fresh water lakes and rivers

Question : 4

The deepest surface depression on the earth is

a) Bentley Subglacial

b) Tonga-Kermadec Trench

c) Kurile Trench

d) Mariana Trench

Question : 5

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

a) Sodium chloride

b) Magnesium sulphate

c) Calcium sulphate

d) Magnesium chloride

Question : 6

Main source of Salinity of the Sea is

a) Ash ejected from the Volcano

b) Wind

c) Rivers

d) Land