World & Physical Geography MCQs

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Trenches are relatively long, steep-sided, narrow basins or depressions. These areas are the deepest parts of the oceans. The greatest known ocean deep, the Mariana Trench which is nearly 36,000 feet deep is found near Guam Island in the Pacific Ocean.

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The salinity of ocean water is a measure of the concentration of dissolved salts, which are mostly – sodium chloride but also include salts containing magnesium, sulfur, calcium, and potassium.
The average salinity of seawater is about 35 parts per thousand

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The general distribution of winds in the lower atmosphere is called as Planetary winds.
The planetary winds are permanent winds that blow from one pressure belt to the other. Accordingly, they have been divided into – Tradewinds, Westerlies and Polar Easterlies

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There are differences in temperature between the western and the eastern coasts at the same latitudes. For example, the eastern coast of US in the tropical zone is warmer than the western coast.The Gulf Stream keeps the temperature higher along the eastern coast while the temperature along the California coast remains relatively lower due to the cold California Current.

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The La Nina presents a situation that can be described as roughly opposite of the El Nino. The literal meaning of the term La Nina is a girl child. During the occurrence of this condition sea surface temperature in the central and western Pacific falls below the normal and this happens due to the South Pacific Sub-tropical High becoming exceptionally strong during the summer season.

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The Denmark Strait, also known as the Greenland Strait, is a strait located in between Greenland, an autonomous territory of Denmark, and Iceland. It is located in the North Atlantic Ocen which connects the Greenland Sea, an extension of theArtcic Ocean, with the Irminger Sea, part of the Atlantic Ocean. It houses Denmark Strait Cataract, the world’s largest known underwater waterfall. It was an important battlefield during World War II as the naval forces of both Germany and Great Britain fought the “Batlle of Denmark Strait” in 1941.

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The Faroe Islands are located in the North Atlantic Ocean. The Faroe Islands are an autonomous territory of Denmark. It is located in between the Norwegian Sea and the North Atlantic Ocean. The capital of the Faroe Islands is Torshavn. It lies north-northwest of Scotland and located halfway between Norway and Iceland.

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Irminger Sea is located in the North Atlantic Ocean. Greenland, the autonomous territory of Denmark, and Iceland form the basin territories of the Irminger Sea. Irminger Current is located in this sea. The Denmark Strait, between Greenland and Iceland, connects the Irminger Sea to the Greenland Sea. In Cape Farewell, the southernmost tip of Greenland, Irminger Sea meets the Labrador Sea. Irminger Sea is one of the main fishing areas of the Rose Fish.

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Migration of large number of people also leads to changes in the literacy, residence and occupations. Thus migration leads not only to quantitative but also qualitative changes in the manpower resource of the two regions involved. involved. Since it is generally the more skilled people who find employment in the areas of immigration, a flight of
such population takes place from the areas of emigration. This is called brain drain. It implies a qualitative improvement in the manpower of the area of immigration and deterioration in the quality of manpower in the area of emigration.

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The location of consumers or the market is an important factor affecting the location of manufacturing activities. 
Market factor has greater importance in the modern times due to the development of transportation and communication facilities, mobility of labour and easy transmission of energy.