Hydrosphere Geography : Top 100 GK MCQ With Free Exam Geography SET :-11

Q61. The Lena river passes through which country ?

(A) China
(B) USA
(C) Russia
(D) Brazil

Answer: Russia

Q62. Which one of the following European countries borders Atlantic Ocean ?

(A) Portugal
(B) Austria
(C) Finland
(D) Romania

Answer: Portugal

Q63. What is the correct decreasing order of the share of different salts in sea water ?

(A) Sodium chloride, magnesium chloride, magnesium sulphate, potassium sulphate
(B) Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate
(C) Sodium chloride, magnesium sulphate, potassium sulphate, magnesium chloride
(D) Sodium chloride, magnesium chloride, potassium sulphate, magnesium sulphate

Answer: Sodium chloride, magnesium chloride, magnesium sulphate, potassium sulphate

Q64. Which of the following current is responsible for rise in temperature in westen Europe ?

(A) Labrador Current
(B) Gulf stream
(C) Canary Current
(D) North Eqatorial

Answer: Gulf stream

Q65. The ideal conditions for coral growth are:

I. water temperature around 20°C

II. tropical waters (between 30°N and 30°S)

III. highly saline water

IV. adequate oxygen

(A) I, II and IV
(B) I, III and IV
(C) I, II and III
(D) II, III and IV

Answer: I, II and IV

Q66. Imaginary lines connecting places in oceans having equal salinity are called

(A) Isotherms
(B) Isobars
(C) Isohalines
(D) Isohyets

Answer: Isohalines

Q67. Which one of the following factors is responsible for the change in the regular direction of the ocean currents in the Indian Ocean ?

(A) Indian Ocean is ‘half an ocean’
(B) Indian Ocean has Monsoon drift
(C) Indian Ocean is a land-locked ocean
(D) Indian Ocean has greater variation in salinity

Answer: Indian Ocean has Monsoon drift

Q68. The reason behind broadening the river valley is

(A) Corrosion
(B) Soil Erosion
(C) Attrition
(D) Hydraulic Action

Answer: Soil Erosion

Q69. Why are the ports of Baltic sea opened for trade in winter ?

(A) It is tropical belt
(B) North Atlantic warm currents flow in this region
(C) Local factors keep it warm
(D) Western disturbances increase the temperature

Answer: North Atlantic warm currents flow in this region

Q70. The ocean surface currents follow clockwise circulatory paths in the northern parts of the Pacific and Atlantic oceans due to the __

(A) Convergence and divergence movements
(B) Coriolis force
(C) Density differences in seawater
(D) Impact of prevailing winds

Answer: Coriolis force