General Knowledge - World Geography

Exercise :: World Geography - Section 3

13. 

The propagation of radio signals is greatly influence by

A. troposphere
B. ionosphere
C. exosphere
D. thermosphere

Answer: Option B

Explanation:

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14. 

The pyramidal peaks that form when several cirques chisel a mountain form three more sides are called

A. horns
B. cirques
C. aretes
D. medial moraines

Answer: Option A

Explanation:

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15. 

The process that involves the eroded material being dissolved and carried along in water as individual ions is called

A. solution
B. suspension
C. saltation
D. traction

Answer: Option A

Explanation:

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16. 

The relative abundance of dissolved salts in seawater in descending order is as follows

A. chlorine, sodium, sulphate, magnesium, calcium, potassium
B. sodium, chlorine, magnesium, potassium, sulphate, calcium
C. chlorine, magnesium, calcium, sodium, potassium, sulphate
D. chlorine, sodium, magnesium, calcium, potassium, sulphate

Answer: Option A

Explanation:

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17. 

The planets with no natural satellites (reported so far) are

A. Mercury and Venus
B. Earth and Pluto
C. Mars and Neptune
D. Jupiter and Saturn

Answer: Option A

Explanation:

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18. 

The percentage of the incident radiation reflected back to space is called

A. planet's albedo
B. earth's albedo
C. both are similar terms
D. None of the above

Answer: Option A

Explanation:

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