hydrosphere & oceanography section 4 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following pair is not correctly matched?

a) Washington – Potomac

b) Warsaw - Vishtula

c) Belgrade - Danube

d) Lisbon - Tiber

Question : 2

Sargasso Sea is characterized by

a) typical marine vegetation

b) highly saline water

c) very cold water

d) very warm water

Question : 3

Consider the following factors.

1. Rotation of the Earth
2. Air pressure and wind
3. Density of ocean water
4. Revolution of the Earth

a) 2, 3 and 4

b) 1 and 4

c) 1 and 2

d) 1, 2 and 3

Question : 4

The surface of Earth covered with water is approximately

a) Three-fifth (3/5)

b) Two-third

c) One-fourth

d) Half

Question : 5

Match the List-I with List-II and select the correct answer from the codes given below: 

a) 2 1 4 3

b) 1 2 3 4

c) 4 3 2 1

d) 3 4 1 2

Question : 6

The chief fishing grounds of the world occur where cold and warm currents meet. This is because.

1. cold currents are rich in nitrates and phosphates which feed plankton.
2. Such areas cause the water to become well-aerated.
3. the warm current brings the right temperature for marine life.

a) 1, 2, and 3

b) 1, and 2

c) 1 only

d) 2 only