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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.
पर्याय
1 and 2 are correct
1 and 3 are correct
2,3 and 4 are correct
1,2 and 3 are correct
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उत्तर
1 and 3 are correct
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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): Atolls are more common in the Atlantic ocean.
Reason(R): The marine population at the depth is less.
Assertion (A): The Ocean water is dynamic
Reason (R): Waves and currents are in horizontal motion while tides have vertical motion.
Assertion (A): The gravitational pull of the sun and moon on earth cause tides on sea water.
Reason (R): Neap tides are caused when the first and last quarter moon appears.
The ocean waters are saline in nature.
Which of the following correctly matched?
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.
Give reason for the following.
Oceans are the lifelines of Earth and Mankind.
Give reason for the following.
Most of the Creek area get submerged.
The oceans are salty. Why?
