Tag: properties of sea water

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Questions Related to properties of sea water

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

State whether these sentences are true (T) or false (F).
The level of seawater remains the same everywhere.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

False,

 Seawater level varies depending on the varying gravitational signature. For example, a seamount (a large mountain within the sea) pulls a large volume of water towards itself, resulting in an elevated surface near the mount. Due to the varying geographical structure of the planet, the sealevel varies with latitude and longitude.

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

The heavier silicates named 'Sima' or silica + magnesium are most aboundant in the __________.

  1. Crust

  2. Core

  3. Mantle

  4. Ocean floors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The heavier silicates named 'Sima' or silica + magnesium are most aboundant in the ocean floor.

These are a mix of minerals like gold, silver, copper, lead, zinc, and rare earth metals like molybdenum, tellurium, and titanium that form along the ocean floor—near underwater volcanic vents. Finally, there are cobalt-rich ferromanganese (Fe-Mn) crusts that form a layer of the ocean floor.

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

The ocean bottom relief are made due to the __________ interactions.

  1. Volcanic

  2. Erosional

  3. Depositional

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The relief of the ocean floor is shaped by a combination of tectonic (volcanic), erosional, and depositional processes. These forces work together to create features like ridges, trenches, and abyssal plains.

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

The movements in the ocean water is/are ___________.

  1. Tides

  2. Waves

  3. Ocean currents

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ocean water is constantly in motion: north-south, east-west, alongshore, and vertically. Seawater motions are the result of waves, tides, and currents. Ocean movements are the consequence of many separate factors: wind, tides, Coriolis effect, water density differences, and the shape of the ocean basins.

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

The oceans are important because _________________.

  1. They are storehouse of water vapours

  2. Water is available for agriculture

  3. They moderate the climate of coastal regions

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

The oceans absorb heat near the equator and then transport that solar energy to polar regions. The oceans also moderate the climate within a region. Along with coastal areas, summer temperatures are not as hot, and winter temperatures are not as cold, because water takes a long time to heat up or cool down.

Multiple choice geography ocean properties of sea water the properties of sea water oceanic salinity and oceanic temperature

The Panama Canal shortens the distance between _________________.

  1. The Atlantic Ocean and the Mediterranean sea

  2. The Red sea and the Arabian sea

  3. The Pacific and the Atlantic oceans

  4. The Atlantic ocean and the Indian ocean
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Panama Canal is a waterway that connects the Atlantic and the Pacific Ocean. Before the canal was opened in 1914 ships had to travel around the southern tip of South America to get from the Atlantic to the Pacific Ocean. The Panama Canal shortens the journey by about 11000 km.

Multiple choice geography ocean properties of sea water the properties of sea water oceanic salinity and oceanic temperature

OTEC refers to ________.

  1. Oceanic mineral resources

  2. Tidal and wave energy.

  3. Ocean thermal energy conversion.

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

Ocean thermal energy conversion (OTEC) uses the ocean thermal gradient between cooler deep and warmer shallow or surface seawaters to run a heat engine and produce useful work, usually in the form of electricity