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प्रश्न
What do you mean by ocean currents?
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उत्तर
Oceans Currents: The movement of oceanic water on the surface and at the depths in a definite direction is called ocean current. Ocean currents are in clockwise motion in the northern hemisphere and in the anti-clockwise motion in the southern hemisphere.
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संबंधित प्रश्न
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 |
Mention the various relief features of ocean floor.
Continental shelf provides good fishing ground.
Distinguish between Abyssal plains and Ocean deeps.
Write a note on continental shelf and continental slope.
Explain the term
Isobath
What role is played by NIO (National Institute of Oceanography)
The ocean waters are saline in nature.
Assertion (A): The ocean/seawater does not contains calcium in great quantities.
Reason (R): Many of the aquatic animals with shells use the dissolved calcium in the seawater to build their protective shells.
