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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
Consider the following statements.
- Most of the fishing grounds occur in areas where the continental shelf is wide.
- Fishing is well developed in warm tropical watersMixing of warm and cold currents facilitates plant nutrients for fish.
- Inland fishing became significant in India.
The northern hemisphere and the southern hemisphere are called land and water hemispheres respectively.
Assertion (A): The Ocean water is dynamic
Reason (R): Waves and currents are in horizontal motion while tides have vertical motion.
Assertion (A): Continental slope is free from deposits as they are steep.
Reason (R): Abyssal plains appear as a uniform flat and featureless plain.
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.
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.
What is Dragon Hole?
What is called continental rise?
What is Sea Mount?
“Though Caspian Sea is enclosed its salinity is just 14 to 17 parts per thousand. Why is it so?
