Tag: oceans : temperature, salinity and density

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Questions Related to oceans : temperature, salinity and density

Multiple choice 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

The chief source of freshwater is ______________.

  1. Well water

  2. River water

  3. Sea water

  4. Rain water
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rivers are the primary source of freshwater for human use and ecosystems, as they collect runoff from precipitation.

Multiple choice 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

The deep sea sediments are deposited mostly by __________________.

  1. microscopic organisms

  2. rivers

  3. ocean currents

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deep sea sediments are largely composed of the remains of microscopic organisms (like foraminifera and diatoms) that settle on the ocean floor.

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

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

  1. rotation of earth

  2. difference in temperature

  3. friction of wind on the surface

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Wind blowing over the surface of the ocean creates friction, which transfers energy to the water and generates waves.

Multiple choice 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

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

  1. 71%

  2. 75%

  3. 66%

  4. 70%
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Approximately 71% of the Earth's surface is covered by water, which constitutes the hydrosphere.

Multiple choice 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

Which is most abundant element in sea water?

  1. Sodium

  2. Chlorine

  3. Iodine

  4. Potassium
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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

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

Rocks of oceanic crust have a density of _______________.

  1. 5.0g/cm$^{3}$
  2. 4.0g/cm$^{3}$
  3. 3.0g/cm$^{3}$

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Cuba is situated in _________ Sea.

  1. Caribbean

  2. Mediterranean

  3. Cabrador

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

Sea mounts with flat-topped profiles are called ________.

  1. Atolls

  2. Guyot

  3. Ridge

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
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).

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

What is meant by an ocean?

  1. Huge water bodies

  2. Huge continents

  3. Huge land mass

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
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.