OCEANOGRAPHY 90 Important MCQS Part 5 FOR NTA UGC NET
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Q.61. Who propounded the theory of stand still theory of formation for coral reefs?
(A) Charles Darwin
(B) Murray
(C) Daly
(D) W.M. Davis
Answer: B
Explanation:
Theories of Coral Formation:
- Subsidence Theory (1837)– C. Darwin
- Stand Still Theory (1880) – Murray
- Glacial Control Theory (1915) – Daly
Q.62. Who Propounded Subsidence Theory of formation of coral reefs
(A) Daly
(B) Murray
(C) Charles Darwin
(D) W.M. Davis
Answer: C
Explanation:
Subsidence Theory (1837)– C. Darwin
Q.63. The Glacial Control Theory of formation of coral reefs was propounded by
(A) W.M Davis
(B) Charles Darwin
(C) Murray
(D) Daly
Answer: D
Explanation:
Glacial Control Theory (1915) – Daly
Q.64. Which one of the following countries has the world’s longest coastline
(A) Australia
(B) Brazil
(C) Japan
(D) Canada
Answer: D
Explanation:
Canada’s coastline is the world’s longest, measuring 243,042 km (includes the mainland coast and the coasts of offshore islands). This compares with Indonesia (54,716 km), Russia (37,653 km), the United States (19,924 km) and China (14,500 km).
Q.65. The famous productive fishing ground Dogger bank are lies in
(A) Baltic Sea
(B) North Sea
(C) Dead Sea
(D) Bermuda Sea
Answer: B
Explanation:
Q.66. In Grand Bank and George Bank abundant productive fishing ground are found due to
(A) Large amount of Phytoplanktons are found.
(B) Large amount of Zooplanktons are found.
(C) Meeting of Cool Labrador current and warm Gulf Stream current
(D) Suitable Water for fishing
Answer: C
Explanation:
Q.67. Match List-I with List-II from the given below
| List-I | List-II |
| A. Deep sea Water Fish | 1. Whale |
| B. Migratory Fish | 2. Salmons |
| C. Salt Water Fish | 3. Tuna |
| D. Largest Marine Mammal | 4. Herring |
Code:
| A | B | C | D | |
| A. | 1 | 4 | 2 | 3 |
| B. | 3 | 2 | 4 | 1 |
| C. | 3 | 2 | 1 | 4 |
| D. | 2 | 3 | 1 | 4 |
Answer: B
Explanation:
Q.68. Which features are called rainforest of oceans?
(A) Fringing Reef
(B) Great Barrier Reef
(C) Colonies of Corals
(D) Atoll
Answer: C
Explanation:
Q.69. What is the real time taken by the tide?
(A) 12 hours
(B) 12 hours 26 minutes
(C) 12 hours 56 minutes
(D) 24 hours
Answer: B
Explanation:
The Periodic rise and fall of the sea level due to the gravitational pull of the Moon and Sun, once or twice a day, is called tides.
Ocean Tides are one type of wave characterized by rhythmic rise and fall of ocean water twice a day.
Tides occur twice a day, their interval is not exactly 12 hours. Instead, they occur at regular intervals of 12 hours and 25 minutes.
Q.70. What is the most important effects of oceanic currents?
(A) Supplying of Plankton for the fishes
(B) Effects on trade and navigation
(C) Effects on formation of delta
(D) Modification of coastal climate
Answer: D
Explanation:
Q.71. Which of the following is the islands of corals
(A) Andaman and Nicobar Islands
(B) Madagascar
(C) Lakshadweep
(D) Ceylon
Answer: C
Explanation:
Q.72. Which of the following area is called Cape of Good Hope
(A) Southern Part of South America
(B) Southern Part of South Africa
(C) Western Part of Australia
(D) Eastern Part of North America
Answer: B
Explanation:
Q.73. A cold ocean current flows from south to north along the western coast of South Africa is called
(A) Canary Current
(B) Labrador Current
(C) Falkland Current
(D) Benguela Current
Answer: D
Explanation:
Q.74. What is La Nina
(A) A Wind
(B) A Cold Ocean Current
(C) A Natural Disaster
(D) A kind of Cyclone
Answer: B
Explanation:
Q.75. Kiel Canal Connects
(A) Caribbean Sea and Pacific Ocean
(B) Barring Sea and Pacific Ocean
(C) Red Sea and Mediterranean Sea
(D) Baltic Sea and North Sea
Answer: D
Explanation:
North Sea and Baltic Sea
The Kiel Canal is a 95-kilometre (59 mi) long freshwater canal in the German state of Schleswig-Holstein. The canal was finished in 1895, but later widened, and links the North Sea at Brunsbüttel to the Baltic Sea at Kiel-Holtenau. An average of 250 nautical miles (460 km) is saved by using the Kiel Canal instead of going around the Jutland Peninsula. This not only saves time but also avoids storm-prone seas and having to pass through the Sound or Belts.
Besides its two sea entrances, the Kiel Canal is linked, at Oldenbüttel, to the navigable River Eider by the short Gieselau Canal.