World & Physical Geography MCQs

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Drainage divide also known as water divide or watershed is an elevated platform dividing the neighboring drainage basins.

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The area where the water flows over a vertical drop or a series of steep slopes or drops in the course of a stream or a river is called a waterfall. They are commonly formed in the upper stage of the river. They have a wide range of width and depth. Angel Falls in Venezuela is the world’s tallest above-water waterfall (979 metres).

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Impact crater lakes are lakes formed by the depression caused by the impact of the crater. They are also known as annular lake. The water in the annular lake is shaped like a ring. 
Lake Manicouagan in Canada is the largest impact crater lake.

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Helmand River is considered as the longest river of Afghanistan. The source of the river is Hindu Kush mountains. It’s tributaries are Arghandab River, Khash River, Chagay River. The mouth of the river is Lake Hamun.

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Mud volcano or mud dome is a landform created by the eruption of mud, water, slurries and gases.  They do not produce lava and are not necessarily driven by magmatic activity.

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Small holes or caves on the surface of a rock formed by weathering is called as Tafoni. They are considered as polygenetic in origin due to its formation by an interaction of complex physical and chemical weathering.

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India shares the border from the west, north and east with Bangladesh. Myanmar lies to the south-east of Bangladesh. Both Nepal and Bhutan are separated from Bangladesh by India’s Siliguri Corridor. China is separated from Bangladesh by the Indian state of Sikkim.

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Uyuni Salt Flat or Salar de Uyuni is the world’s largest salt flat. It is located in Bolivia. Several pre-historic lakes transformed to form a salt crust of few metres. The crust is the source of salt and brine, which is rich in Lithium. Salt crystallization due to water evaporation leads to hexagonal formations on the surface of Salar de Uyuni. Incahuasi Island is the centre of Salar. This salt flat contains large amount of sodium, potassium, lithium, magnesium and borax.

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Debundscha is located in Cameroon. It is located at the foothills of Mount Cameroon facing the Atlantic Ocean. It is one of the five rainiest places in the world in which others are Lloro(Colombia), Mawsynram(India), the Big Bog(Hawaiian Islands) and Cherrapunji(India). It is located in equator giving it a year-round hot and humid climate.

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The Wyville Thomson Ridge is a bathymetric feature of the North Atlantic Ocean floor, located between the Faroe Islands and Scotland. It is approximately 20km wide and 70km long.