Ocean Floor: MCQ Test (25 questions)

Question 1 of 25

The areas where mountains are found along the coast are continental shelf.

Awide enough
Bnarrow
Ccut-and-trimmed
Dshallow

Question 2 of 25

Submerged canyons are found in the world-

A57
B75
C102
D120

Question 3 of 25

What is the general depth of oceanic trenches in meters?

A5000
B5500
C7000
D10000

Question 4 of 25

Most of the fish and other sea food are obtained mainly from-

Afrom the continental shelf
Bfrom the continental shelf
Cfrom the continental rise
Dfrom the deep sea

Question 5 of 25

What is the area with a steep slope towards the sea called?

Aoceanic trench
Bdeep ocean slope
Ccontinental shelf
Dcontinental shelf

Question 6 of 25

Which of the following statements is correct regarding the Deep Sea Plain?

AIt covers approximately three-fourths of the total oceanic area.
BIts depth is 3000 to 6000 meters.
CIts maximum extent is found between 20° North latitude and 60° South latitude.
Dall of the above

Question 7 of 25

What percentage of the total oceanic area is covered by the continental shelf?

A0.065
B0.075
C0.085
D0.095

Question 8 of 25

What is the percentage of extension of the ocean in the Northern Hemisphere?

A0.6
B0.63
C0.607
D0.809

Question 9 of 25

Which of the following trenches is located in the Indian Ocean?

ASunda Trench
BAleutian Trench
CRamapo Trough
DAtacama Trough

Question 10 of 25

Approximately what is the number of bottom hills in the Pacific Ocean?

A5000
B7000
C10000
D15000

Question 11 of 25

How many ocean trenches have been discovered so far in all the oceans of the world?

A19
B32
C51
D57

Question 12 of 25

What percentage of the total ocean area is covered by the continental shelf?

A0.055
B0.065
C0.075
D0.085

Question 13 of 25

What percentage of the world's total production of mineral oil and natural gas comes from the continental shelf?

A0.1
B0.2
C0.25
D0.4

Question 14 of 25

What percentage of the total Earth's surface is covered by water?

A0.29
B0.71
C0.75
D0.79

Question 15 of 25

Dolphin Challenger Cuttack is located at-

AAtlantic Ocean
BPacific Ocean
CIndian Ocean
DArctic Ocean

Question 16 of 25

What is the percentage of expansion of the hydrosphere in the Southern Hemisphere?

A0.6
B0.63
C0.809
D0.828

Question 17 of 25

Sunda Trench is located in-

ASouth of Sumatra
BNorth of Sumatra
CNorth of Chagos Islands
DSouth of the Chagos Islands

Question 18 of 25

Which ocean has the largest number of submerged canyons?

APacific Ocean
BAtlantic Ocean
CIndian Ocean
DArctic Ocean

Question 19 of 25

By what name are flat-topped sea mountains known?

AMonadnock
BGuyot
Cinselberg
DJugen

Question 20 of 25

The submerged part of the land which is connected to the continent and is not more than 600 feet deep is called-

Acontinental shelf
Bcontinental shelf
CContinental islands
Dcoral island

Question 21 of 25

The deepest oceanic trench in the world is-

ATonga
BMariana
CPhilippine
DKermadec

Question 22 of 25

The world's longest submerged canyons are found in-

Ain the Mediterranean Sea
Bin the Bering Sea
Cin the South China Sea
Din the Sea of Japan

Question 23 of 25

In which ocean is the largest extent of deep sea plain found?

Apacific ocean
BAtlantic Ocean
CIndian Ocean
DArctic Ocean

Question 24 of 25

Which of the following statements about the continental shelf is false?

AIt is structurally a part of the continent.
BIts average depth is about 200 meters.
CIts maximum extent is in the Pacific Ocean.
DIts average slope is about 1⁰ Is

Question 25 of 25

The length of the Mid-Atlantic Ridge located in the Atlantic Ocean is approximately-

A11,000 km.
B14,000 km.
C18,000 km.
D20,000 km.