Tag: oceans : temperature, salinity and density

Questions Related to oceans : temperature, salinity and density

The chief source of freshwater is ______________.

movements of ocean and sea water oceans : temperature, salinity and density geography tides and ocean currents circulation of ocean water oceanic circulations study of water pollution threats to water resource pollution and environment

  1. Well water

  2. River water

  3. Sea water

  4. Rain water

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Correct Option: B

The deep sea sediments are deposited mostly by __________________.

movements of ocean and sea water oceans : temperature, salinity and density geography tides and ocean currents circulation of ocean water oceanic circulations study of water pollution threats to water resource pollution and environment

  1. microscopic organisms

  2. rivers

  3. ocean currents

  4. None of these

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Correct Option: A

Sea-waves are undulated movements of water on the surface of the sea due to ________________.

movements of ocean and sea water geography ocean circulation of ocean water oceans : temperature, salinity and density tsunami and floods oceanic circulations

  1. rotation of earth

  2. difference in temperature

  3. friction of wind on the surface

  4. None of these

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Correct Option: C

How much area of the Earth surface is covered by Hydrosphere?

geography tides and ocean currents circulation of ocean water movements of ocean and sea water oceans : temperature, salinity and density oceanic circulations study of water pollution threats to water resource pollution and environment

  1. 71%

  2. 75%

  3. 66%

  4. 70%

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Correct Option: A

Which is most abundant element in sea water?

geography ocean and man circulation of ocean water movements of ocean and sea water oceans : temperature, salinity and density study of water pollution threats to water resource pollution and environment

  1. Sodium

  2. Chlorine

  3. Iodine

  4. Potassium

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Correct Option: A
Explanation:

The most abundant dissolved ions in seawater are sodium, chloride, magnesium, sulfate and calcium. Its osmolarity is about 1000 mOsm/l.

The highest amount of salinity is found in _________________.

geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

  1. Baltic sea

  2. Black sea

  3. Dead sea

  4. Red sea

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Correct Option: C

Rocks of oceanic crust have a density of _______________.

geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

  1. 5.0g/cm$^{3}$

  2. 4.0g/cm$^{3}$

  3. 3.0g/cm$^{3}$

  4. None of these

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Correct Option: C
Explanation:

The oceanic crust is much thinner, ranging from 5 to 10 km thick. The continental crust has an average density of 3.0 g/cm3 and is composed primarily of felsic rock.

Cuba is situated in _________ Sea.

geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

  1. Caribbean

  2. Mediterranean

  3. Cabrador

  4. None of these

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Correct Option: A
Explanation:

Cuba is located in the northern Caribbean where the Caribbean Sea, Gulf of Mexico and Atlantic Ocean meet. It is east of the Yucatán Peninsula (Mexico), south of both the U.S. state of Florida and the Bahamas, west of Haiti and north of both Jamaica and the Cayman Islands.

Sea mounts with flat-topped profiles are called ________.

geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

  1. Atolls

  2. Guyot

  3. Ridge

  4. None of these

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Correct Option: B
Explanation:

In marine geology, a guyot , also known as a tablemount, is an isolated underwater volcanic mountain (seamount) with a flat top more than 200 m (660 ft) below the surface of the sea. The diameters of these flat summits can exceed 10 km (6.2 mi).

What is meant by an ocean?

geography the properties of sea water properties of sea water oceanic salinity and oceanic temperature oceans : temperature, salinity and density circulation of ocean water

  1. Huge water bodies

  2. Huge continents

  3. Huge land mass

  4. None of these

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Correct Option: A
Explanation:

The ocean basins are huge depressions of great depth, usually more than 2000 m, having basaltic floors with varying topographic feature. Nearly 70.8 per cent of the earth's surface is covered by water. The ocean has saline water body and home of nearly 1.4 lakh species and also believed the first homes of all living organisms.