question_answer 1)
The average temperature of the oceans is about:
A)
\[{{4}^{o}}C\] done
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B)
\[{{6}^{o}}C\] done
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C)
\[{{8}^{o}}C\] done
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D)
\[{{10}^{o}}C\] done
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question_answer 2)
The widest continental-shelf is found in the:
A)
Antarctic Ocean done
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B)
Arctic Ocean done
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C)
Atlantic Ocean done
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D)
Indian Ocean done
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question_answer 3)
Continental margins include:
A)
Continental Shelf and Submarine Canyons. done
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B)
Continental Shelf and Continental Slope. done
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C)
Continental Shelf, Continental Slope and Continental Rise. done
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D)
Continental Shelf and Continental Rise. done
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question_answer 4)
The highest annual range of temperature is recorded in the:
A)
North Atlantic Ocean done
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B)
North Pacific Ocean done
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C)
South Atlantic Ocean done
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D)
South Pacific Ocean done
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question_answer 5)
The highest salinity of the oceans is found between:
A)
\[{{10}^{o}}\] to \[{{20}^{o}}\] N. latitudes done
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B)
\[{{20}^{o}}\]to \[{{30}^{o}}\] N. Lat. done
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C)
\[{{30}^{o}}\] to \[{{40}^{o}}\] N. Lat. done
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D)
\[{{10}^{o}}\]to \[{{20}^{o}}\] S. lat. done
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question_answer 6)
The highest temperature is recorded in the:
A)
Gulf of Khambat done
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B)
Gulf of Mannar done
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C)
Gulf of Martaban done
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D)
Gulf of Persia done
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question_answer 7)
Which one of the following has the highest salinity?
A)
Caspian Sea done
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B)
Dead Sea done
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C)
Sambhar Lake done
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D)
Van Lake done
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question_answer 8)
Out of the following, the highest salinity of the oceans is found in the:
A)
Red Sea done
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B)
Mediterranean Sea done
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C)
Caribbean Sea done
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D)
Black Sea done
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question_answer 9)
In case the ice-sheet of Antarctica melts completely, the sea-level of the world oceans will rise by about:
A)
40 metres done
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B)
60 metres done
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C)
80 metres done
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D)
100 metres done
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question_answer 10)
Consider the following statements and select the correct answer using the code given below:
1. The solids dissolved in seawater changes its thermal characteristics. 2. The solids dissolved in water lowers its heat capacity by 4 %. 3. Only \[0.96\]calories of heat energy is required to raise the temperature of sea-water by \[{{1}^{o}}C\] 4. The saltier the water, lower the freezing point.
A)
1, 2 and 3 are correct done
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B)
1, 2 and 4 are done
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C)
1, 2, 3 and 4 are correct done
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D)
2, 3 and 4 are correct done
clear
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question_answer 11)
Consider the following statements about eustatic change and select the correct answer using the code given below:
1. A rise or fall of sea level is known as eustatic change. 2. Eustatic change is the result of tidal waves. 3. Eustatic change is caused by earthquake waves. 4. Eustatic change is caused by climatic change.
A)
1 and 2 are correct done
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B)
1 and 3 are correct done
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C)
1, 2, 3 and 4 are correct done
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D)
1 and 4 are correct done
clear
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question_answer 12)
Which one of the following countries is contributing significantly in the protection of coral formations?
A)
Australia done
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B)
Israel done
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C)
U.K. done
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D)
U.S. done
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question_answer 13)
Coral formations are not found in
A)
Andaman and Nicobar Island done
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B)
Lakshadweep Islands done
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C)
Rann of Kachchh Islands done
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D)
Sundarban Islands done
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question_answer 14)
Consider the following statements and select the correct answer using the code given below
1. There is an inverse relationship between the salinity and temperature of oceans. 2. Inversion of temperature in oceans is found in the lower latitudes.
A)
Only 1 is correct done
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B)
Only 2 is correct done
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C)
Both 1 and 2 are correct done
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D)
Neither 1 nor 2 is correct done
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question_answer 15)
The Coral Reef Research Centre of India is located at
A)
Kavaratti done
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B)
Puducherry done
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C)
Port Blair done
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D)
Tuticorin done
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question_answer 16)
The coral formation named 'Roast Reef lies along the coast of:
A)
Australia done
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B)
New Zealand done
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C)
Norway done
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D)
Somalia done
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question_answer 17)
Consider the following statements and select the correct answer using the code given below:
1. The bony fishes constitute about 90% of the total fishes of the world 2. The cartilaginous fishes constitute about 10 percent of the total fishes of the world 3. Tuna fish can travel more than a 1.7 million km in its life time. 4. Tuna fish regularly migrate from California (USA) to Japan and back.
A)
1, 2 and 3 are correct done
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B)
1, 2 and 4 are correct done
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C)
2, 3 and 4 are correct done
clear
D)
1, 2, 3 and 4 are correct done
clear
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question_answer 18)
The highest tides occur in the
A)
Gulf of Aqaba done
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B)
Gulf of Carpentria done
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C)
Gulf of Funday done
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D)
Gulf of Martaban done
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question_answer 19)
Which one of the following is not correctly matched?
A)
A line joining the points of equal depth is known as isobath. done
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B)
A line joining the points of equal salinity is known as isohaline. done
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C)
A line joining the points of equal sunshine is known as isonif. done
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D)
A line joining the points of equal rainfall in known as isohyte. done
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question_answer 20)
What explains the eastward flow of the equatorial counter current?
A)
The Earth's rotation on its axis done
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B)
Convergence of the two equatorial currents done
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C)
Difference in salinity of water done
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D)
Occurrence of the belt of calm near the equator done
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question_answer 21)
Consider the following statements and select the correct answer using the code given below:.
1. The continental shelves of the Atlantic Ocean are wider as compared to that of the Pacific Ocean 2. Most of the material deposited at the continental shelf comes from erosion of the adjacent continental mass. 3. The width of a shelf is usually determined by proximity to a plate boundary.
A)
1 and 2 are correct done
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B)
1 and 3 are correct done
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C)
2 and 3 are correct done
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D)
1, 2 and 3 are correct done
clear
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question_answer 22)
Consider the following statements and select the correct answer using the code given below:
1. About 3.5% of seawater consists of dissolved substances. 2. Variations of 0.1% in salinity are significant, therefore oceanographers prefer to use parts-per-thousand notion (%) rather than per cent (%) in discussing salinity. 3. Nearly every element present in the crust and atmosphere is also present in the oceans.
A)
1, 2 and 3 are correct done
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B)
1 and 2 are correct done
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C)
2 and 3 are correct done
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D)
None of the above is correct done
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question_answer 23)
Which one of the following statements is not correct?
A)
A periodic short-term change in the height of the ocean surface at a particular place due to solar, lunar and gravitational forces is known as a tide. done
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B)
A tide influenced by weather is known as meteorological tide. done
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C)
A complex tidal cycle, usually with one high tide and one low tide of unequal height per day is known as mixed tide. done
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D)
The crest of the wave causing tides is known as tidal wave. done
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question_answer 24)
Consider the following statements and select the correct answer using the code given below:
1. Heat and temperature are not the same thing. 2. Heat tell us how many and how rapidly molecules are vibrating. 3. Temperature records only how rapidly the molecules of a substance are vibrating. 4. Temperature is an object's response to an input (or removal) of heat.
A)
1, 2 and 3 are correct done
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B)
1, 3 and 4 are correct done
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C)
2, 3 and 4 are correct done
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D)
1, 2, 3 and 4 are correct done
clear
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question_answer 25)
Which one of the following statements is not correct?
A)
Water molecules in hot water vibrate more rapidly than water molecules in cold water. done
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B)
The density of pure water is 1 gram per cubic centimeter \[(1g/c{{m}^{3}})\]. done
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C)
Granite rock is heavier, with a density of about\[3.7\text{ }g/c{{m}^{3}}\]. done
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D)
Most substances become denser (weigh more per unit volume) as they get colder. done
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question_answer 26)
A tide caused by the gravitational and inertial interaction of the Sun and the Earth is known as
A)
Meteorological Tide done
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B)
Neap Tide done
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C)
Spring Tide done
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D)
Solar Tide. done
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question_answer 27)
Consider the following statements and select the correct answer using the code given below:
1. The thin film of water at the surface of ocean that receivers sunlight is known as photic zone. 2. The photic zone rarely extends deeper than 200 meters. 3. The upper half of the photic zone- the layer in which most biological productivity occurs is called euphotic zone. 4. Below the photic zone is the aphotic (dark zone) which extends to the bottom.
A)
1, 2 and 3 are correct done
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B)
1, 2, 3 and 4 are correct done
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C)
1, 3 and 4 are correct done
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D)
2, 3 and 4 are correct done
clear
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question_answer 28)
Arrange the following zones of the oceans according to depth in a descending order and select the correct answer using the code given below:
A)
Bathyl Zone, Abyssal Zone and Hadal Zone. done
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B)
Bathyl Zone, Hadal Zone and Abyssal Zone done
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C)
Hadal Zone, Bathyl Zone and Abyssal Zone done
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D)
Hadal Zone, Abyssal Zone and Bythal Zone done
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question_answer 29)
Which one of the following is not correctly matched?
A)
Sand on the shoreward side of the berm crest, sloping away from the ocean. done
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B)
A zone of unconsolidated particles extending from below water level to the edge of the coastal zone. done
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C)
A diagonal accumulation of sediment parallel to shore. done
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D)
Water from waves washing onto a beach. done
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question_answer 30)
Consider the following statements and select the correct answer using the code given below:
1. The Terrigenous sediments constitute about 55 % of all ocean floor area covered 2. The Biogenous sediments constitute about 45 % of all ocean floor area covered
A)
Only 1 is correct done
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B)
Only 2 is correct done
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C)
Both 1 and 2 are correct done
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D)
Neither 1 nor 2 is correct done
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