Tag: circulation of ocean water

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Questions Related to circulation of ocean 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

Over millions of years of rain, rivers and streams have washed over rocks containing the compound _____ and carried it into the seas and oceans.

  1. Sodium Chloride

  2. Hydrogen chloride

  3. Sodium Hydroxide

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

Over millions of years of rain, rivers and streams have washed over rocks containing the compound Sodium Chloride and carried it into the seas and oceans.

The oceans get saltier due to the rivers that flow into them. Water from the ocean evaporates, and then rains over land and forms rivers. As the rivers flow over the land, things like salt dissolve into the river and are carried out to the sea.

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

Which term is used to define the total content of dissolved salts in sea water?

  1. Saltness

  2. Salinity

  3. Salty

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Salinity is the saltiness or dissolved salt content in a body of water. Salinity is an important factor in determining many aspects of the chemistry of natural waters and of biological processes within it, and is a thermodynamic state variable that, along with temperature and pressure, governs physical characteristics like the density and heat capacity of the 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

Relief features that are found in the oceans include ______.

  1. Submarine ridges

  2. Plateaus

  3. Canyons

  4. Terraces

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The Oceanic relief features are in the form of mountains, basins, plateaus, ridges, canyons and trenches beneath the ocean water. These forms are called Submarine Relief.

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

Factors affecting salinity in surface layers of ocean include _____.

  1. Evaporation and precipitation

  2. Winds by transferring water to other areas

  3. The ocean currents

  4. Fresh water flows from rivers and freezing and thawing of ice

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Factors affecting salinity in surface layers of ocean include:

  1. The salinity of water in the surface layer of oceans depends mainly on evaporation and precipitation.
  2. Surface salinity is greatly influenced in coastal regions by the fresh water flow from rivers, and in polar regions by the processes of freezing and thawing of ice.
  3. Wind, also influences salinity of an area by transferring water to other areas.
  4. The ocean currents contribute to the salinity variations.
  5. Salinity, temperature and density of water are interrelated. Hence, any change in the temperature or density influences the salinity of an area.

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

Who divided the oceanic part of the earth into five oceans?

  1. Cartographers

  2. Geographers

  3. Geologists

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

The surface of the planet is approximately 71% water and contains (5) five oceans, including the Arctic, Atlantic, Indian, Pacific and Southern. Their borders are indicated on the world image (above) in varied shades of blue. These were divided by the Geographers who were exploring the world.

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

Which factors influence the oceanic temperature?

  1. Latitudes

  2. Winds

  3. Ocean currents

  4. Changes of seasons

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Although many factors combine to influence weather, the four main ones are solar radiation, the amount of which changes with Earth's tilt, orbital distance from the sun and latitude, temperature, air pressure and the abundance of 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

The single super ocean was known as ______.

  1. Pangaea

  2. Panthalassa

  3. Gondwana

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

Panthalassa was the superocean that surrounded the supercontinent Pangaea. A superocean is an ocean that surrounds a supercontinent. It is less commonly defined as any ocean larger than the current Pacific Ocean. The movement of Earth's tectonic plates formed Pangaea and ultimately broke it apart. Pangaea existed during the Permian and Triassic geological time periods, which were times of great change.

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 the uniform temperature of sea water after 2000m?

  1. Around 2 degree

  2. Around 3 degree

  3. Around 4 degree

  4. Around 5 degree
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

After 2000m, the temperature of the seawater is uniform everywhere. It is around $4^0C$ according to depth. And therefore, the water of greater depths does not freeze.

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 the main source of potable water available of the earth?

  1. Precipitation

  2. River

  3. Cyclone

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

Precipitation is the main source of potable water available of the earth. Snow, hailstones, rainfall, are the major forms of precipitation.

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

Oceans provided abundant ______ resources like fish and salt.

  1. agricultural

  2. food

  3. flora and fauna

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

Oceans provided abundant food resources like fish and salt.

The ocean is an important source of food and other resources. Since well before recorded history, humans have used the sea as a source of food. While only 5% of the protein consumed by world populations comes from the sea, it is still an important contribution to the diet of millions of the world's inhabitants.