OCEANOGRAPHY 90 Important MCQS Part 1 FOR NTA UGC NET

OCEANOGRAPHY 90 Important MCQS Part 1 FOR NTA UGC NET

OCEANOGRAPHY 90 Important MCQS NTA UGC NET, OCEANOGRAPHY 90 MCQS PART 1, NTA UGC NET PYQS GEOGRAPHY, OCEANOGRAPHY 90 MCQS PART 1, GEOGRAPHY PYQS UGC NET, NTA UGC NET GEOGRAPHY PAPER WISE PYQS, PYQS FOR UGC NET GEOGRAPHY,

(PDF) For download pdf file of OCEANOGRAPHY 90 MCQS – – go to the bottom of this post.

CLICK HERE TO ATTEMPT MOCK TEST 

Q.1. Who is called Father of Oceanography?

(A) John Dittemar

(B) Matthew Fontaine Maury

(C) Captain James Cook

(D) Christopher Columbus

Answer: B

Explanation:

 

Q.2. The precious minerals like Petroleum and Natural Gas are found in

(A) Continental Shelf

(B) Continental Slope

(C) Continental Rise

(D) Abyssal Plain

Answer: A

Explanation:

 

Continent Shelf:

This is the seaward extension of the continent from the shoreline to the continental edge. They are absent on mountainous coasts and are widest in shores of lowland coasts. The continental shelf formation may be by submerging of continental edges due to rising water levels or by water erosion. Alternately they could have been formed by deposition of silt from rivers.

Characteristics:

  1. It is shallow part of ocean and connected to the continent.
  2. It has highest bio diversity.
  3. Light reaches the bottom and hence aquatic plants are found.
  4. Depth is about 200m.
  5. Sediments from land are also found.

 

Q.3. The Oceanic ridge come into existence because of the

(A) Convergence of Plates

(B) Divergence of Plates

(C) Shearing of Plates

(D) Tectonic Movements

Answer: B

Explanation:

Mid-ocean ridges occur along divergent plate boundaries, where new ocean floor is created as the Earth’s tectonic plates spread apart. As the plates separate, molten rock rises to the seafloor, producing enormous volcanic eruptions of basalt.

 

 Oceanic Ridge

 

Q.4. Which country headed the Challenger Expedition (1872-76)

(A) United Status of America

(B) United Kingdom

(C) U.S.S.R

(D) Germany

Answer: B

Explanation:

 

Q.5. Flat topped volcanic hills submerged under ocean water are called

(A) Seamounts

(B) Abyssal Hills

(C) Guyots

(D) Submarine Canyons

Answer: C

Explanation:

Q.6. Match List-I wish List-II ad select the correct answer using the code given below

List-I

(Ocean Trench)

List-II

(Ocean)

A. Aldrich/Tonga 1. South Indian Ocean
B. Challenger/Mariana Trench 2. South Pacific
C. Puerto Rico 3. North Pacific
D. Sunda/Java Trench 4. North Atlantic

 

Code:

A B C D
A. 2 1 3 4
B. 2 3 4 1
C. 1 3 2 4
D. 1 4 3 2

 

Answer: B

Explanation:

 

Challenger/Mariana Trench

 

 Aldrich/Tonga

 

Puerto Rico

 

Sunda/Java Trench

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q.7. The world deepest oceanic Mariana Trench has a depth of about

(A) 7,450 Meters

(B) 8,385 Meters

(C) 10,880 Meters

(D) 11,033 Meters

Answer: D

Explanation:

 

Q.8. Match List-I with List-II and select the correct answer using the codes given below

List-I

(Relief Features)

List-II

(Ocean)

A. Telegraph Plateau 1. North Pacific Ocean
B. Albatross Plateau 2. North Atlantic Ocean
C. Amsterdam St. Paul Ridge 3. South Pacific Ocean
D. Kurile Trench 4. Indian Ocean

 

Code:

A B C D
A. 2 3 4 1
B. 2 3 1 4
C. 1 2 3 4
D. 4 3 2 1

 

Answer: A

Explanation:

 

 

Q.9. The Sargasso Sea (Weed Growing Sea) lies in the

(A) North Pacific Ocean

(B) North Atlantic Ocean

(C) South Pacific Ocean

(D) South Atlantic Ocean

Answer: B

Explanation:

Sargasso Sea is a water body located entirely in the North Atlantic Ocean. It is named after “Sargassum”, a species of seaweed that covers the area’s waters and distinguishes it from the rest of North Atlantic Ocean.

The Sargasso Sea is the only sea without coastlines and that is beacuse instead of being bounded by land, it is defined by four ocean currents!

The sea is surrounded by Canary current in East, Gulf Stream in West, North Atlantic current in North and North Atlantic Equatorial current in South.

Sargasso Sea

Q.10. The line joining the points of Equal depth are known as

(A) Isohalines

(B) Isoclines

(C) Isohytes

(D) Isobaths

Answer: D

Explanation:

 

Q.11. The Diego Garcia is an island located in in which of the following oceans

(A) Atlantic Ocean

(B) Pacific Ocean

(C) Indian Ocean

(D) Arctic Ocean

Answer: C

Explanation:

 

 

 

 

 

 

 

 

Q.12. The Average temperature of the surface water of the ocean is

(A) 22° C

(B) 17°C

(C) 20.6°C

(D) 26.7°C

Answer: B

Explanation:

 

Q.13. The ocean water was iceberg free during the era

(A) Archaean

(B) Paleozoic

(C) Cenozoic

(D) Mesozoic

Answer: D

Explanation:

 

Q.14. Surface Circulation of Ocean water is due to

(A) Resisting Force

(B) Tidal Force

(C) Gravitational Force

(D) Blowing Wind

Answer: D

Explanation:

Factors:

  1. Wind:

Wind is the single biggest factor in the creation of surface currents. Strong winds moving across an expanse of water move the surface of the water. These strong winds are not random breezes; the major winds that most often effect the creation of ocean currents are the Westerlies, which blow west to east, and the Trade Winds, which blow east to west.

  1. Water Density
  2. Ocean Bottom Topography
  3. Coriolis Effect
  4. Salinity
  5. Temperature

Ocean Water Circulation

Q.15. Which one of the following is correct arrangement of oceans in ascending order as of their size

(A) Indian- Arctic- Atlantic- Pacific

(B) Arctic- Indian- Atlantic- Pacific

(C) Pacific – Atlantic-Indian-Arctic

(D) Atlantic- Pacific- Arctic- Indian

Answer: B

Explanation:

PDF DOWNLOAD LINK: OCEANOGRAPHY 90 Important MCQS Part 1

Leave a Comment

error: Content is protected !!