Identify the correct statement pertaining to the Mid-Atlantic Rid

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 Multiple Choice QuestionsMultiple Choice Questions

21.

Which one of the following countries is devoid of Glossopteris flora ?

  • India

  • Australia

  • Norway

  • South Africa


22.

 

LIST I

(Elements)

LIST II

(Density in gm/cm3)

(a) Sea waves (1) 2.4
(b) Oceanic crust (2) 1.03
(c) Continental crust (3) 2.8
(d) Continental margin (4) 2.9
  • a-4 , b-2 , c-1, d-3

  • a-2 , b-4 , c-1 , d-3

  • a-2 , b-4 , c-3 , d-1

  • a-3 , b-4 , c-2 , d-1


23.

LIST I

(Sea configuration)

LIST II

(Deposits)

(a) Sea bottom (1) Hadalpelagic
(b) Surface layer (2) Pelagic province
(c) Deep-sea trenches (3) Benthic province
(d) Sea-water column  (4) Epipelagic zone
  • a-3 , b-4 , c-2 , d-1

  • a-3 , b-4 , c-1 , d-2

  • a-4 , b-3 , c-2 , d-1

  • a-1 , b-4 , c-2 , d-3


24.

Which one of the following is the correct average slope angle of continental slope ?°

  • 2° 


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25.

Which one of the following is the main chemical composition of coral reefs ?

  • MgCO(Magnesium Carbonate)

  • KCO3 (Potassium Carbonate)

  • NaCl (Sodium Chloride)

  • CaCO(Calcium Carbonate)


26.

ASSERTION (A) : Coral reefs to be most extensively developed along the eastern edges of continents.

REASON (R) : Sea water is warmer than 20°C.

  • Both (A) and (R) are true and (R) is the correct explanation of (A). 

  • Both (A) and (R) are true but (R) is not the correct explanation of (A).

  • (A) is true , but (R) is false.

  • (A) is false , but (R) is true.


27.

The term "Swash" refers to :

  • Backward movement of sea water at the beach after the breaking of a wave.

  • Oblique movement of sea water at the beach after breaking of a wave.

  • Forward movement of sea water up the beach after the breaking of a wave.

  • Sideward movement of sea water up the beach after the breaking of a wave.


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28.

Identify the correct statement pertaining to the Mid-Atlantic Ridge from the floor of Atlantic Ocean among the following :

  • Almost 3 km above

  • Almost 4 km above

  • Almost 5 km above

  • Almost 6 km above


A.

Almost 3 km above


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29.

The coral reefs that are generally found attached to the shore with an intervening shallow channel or a lagoon is called 

  • Barrier reef

  • Patch reef

  • Ribbon reef

  • Fringing reef


30.

Identify the correct statement regarding variation in density of ocean water and air at the same temperature :

  • Ocean water is 800 times more denser than air.

  • Ocean water is 600 times more denser than air.

  • Ocean water is 400 times more denser than air.

  • Ocean water is 200 times more denser than air.


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