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प्रश्न
Which of the following indicates the correct sequence of the topography beneath the surface of the sea?
पर्याय
Continental shelf-Continental slope-Sea plain-Sea trench
Continental slope-Continental shelfSea plain-Sea trench
Sea plain-Continental slopeContinental shelf-Sea trench
Continental slope-Sea plain-Continental shelf-Sea trench
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उत्तर
Continental shelf-Continental slope-Sea plain-Sea trench
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संबंधित प्रश्न
Which of the following is not correctly matched?
- Gulf Stream - Pacific Ocean
- Labrador current - North Atlantic Ocean
- Canary current - Mediterranean sea
- Mozambique current - Indian Ocean.
Assertion (A): Oceans are always shown in blue in maps.
Reason(R): It indicates the natural colour of the oceans.
Match the following:
| 1. | Mariana trench | Decreases salinity in the oceans |
| 2. | Great Barrier Reef | Along the coast of Japan |
| 3. | Spring tides | Deepest point in the Pacific |
| 4. | Heavy rains | Australia |
| 5. | Kuroshio current | Second order landform |
| 6. | Continental slope | On full and new moon days |
A very long narrow depression on the ocean floor is called ______.
Assertion (A): The energy of the falling wave water is used to turn hydro turbines to generate power.
Reason (R): Gulf of Khambat is one of the potential Tidal energy Zones.
Assertion(A): Salinity is higher in closed ocean basins.
Reason(R): Enclosed ocean basins undergo little mixing with the open ocean.
Abyssal plains in the Atlantic and Indian Oceans tend to be extensive than the Pacific Ocean. Why?
Consider the following statement.
- Submarine Fans which are similar to the alluvial fans found in water.
- Aquatic life has a very slow rate of metabolism.
- Dragon Hole is the deepest known underwater sinkhole in the world.
- Abyssal plains are usually covered by a thick layer of sediments.
Assertion (A): Continental shelf is almost a uniform zone of sea bed with gentle gradient.
Reason (R): This enables sunlight to penetrate through the water.
When was the National Institute oceanography established? What do they do?
