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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ९

The oceanic ridge comes into existence due to. - Social Science

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प्रश्न

The oceanic ridge comes into existence due to.

विकल्प

  • convergence of tectonic plates

  • divergence of tectonic plates

  • lateral movements of plates

  • stearing of plates

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उत्तर

divergence of tectonic plates

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Oceans
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2.04: Hydrosphere - Exercises [पृष्ठ २००]

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सामाचीर कलवी Social Science [English] Class 9 TN Board
अध्याय 2.04 Hydrosphere
Exercises | Q I. 4 | पृष्ठ २००

संबंधित प्रश्न

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

Consider the following statement.

  1.  Sylvia Earle is a famous American oceanographer
    2. The continental shelves have extensive deposits of mineral fuels.
    3. Submarine fans are located in continental slope.
    4. Abyssal plains are otherwise called shallow sea plains.

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): On the basis of temperature, ocean currents can be classified as warm currents and cold currents.
Reason (R): The movement of ocean current from the low latitudes towards high latitudes cause cold current.


Write a note on ONGC.


What role is played by NIO (National Institute of Oceanography)


Consider the following statement.

  1. Submarine Fans which are similar to the alluvial fans found in water.
  2. Aquatic life has a very slow rate of metabolism.
  3. Dragon Hole is the deepest known underwater sinkhole in the world.
  4. 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.


Assertion (A): Ocean currents are in clockwise motion in the Northern Hemisphere and in the anti-clockwise motion in the Southern hemisphere.
Reason (R): The movement of ocean currents from high latitudes to low latitudes is called warm currents.


Write a short note on the movement of the ocean water.


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