World & Physical Geography MCQs

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The longest river of the Kingdom of Morocco is river Draa. It originates by the confluence of the Dades river and Imini river. Its total length is about 1100 kilometer long.

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The largest lake of the Republic of Mozambique is the lake Malawi. It is the largest lake of Africa and is spread in three countries namely Mozambique, Malawi and Tanzania.

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When magma solidifies under the earth’s surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.

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Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.

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A meander, in general, is a bend in a sinuous watercourse or river. A meander forms when moving water in a river erodes the outer banks and widens its valley. Meandering rivers erode sediment from the outer curve of each meander bend and deposit it on an inner curve further downstream. When a meander gets cut off from the main stream, an oxbow lake forms.

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The term “smog” was first used in London during the early 1900’s to describe the combination of smoke and fog. What we typically call “smog” today is a mixture of pollutants but is primarily made up of ground-level ozone.

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Plantation agriculture is a form of commercial farming where crops are grown for profit. Usually, only one type of crop is grown in a plantation. Common examples include rubber, coffee, tea, bananas, sugar cane, oil palm, cocoa and tobacco.

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Terrace farming is the practice of cutting flat areas out of a hilly or mountainous landscape in order to grow crops. It involves growing crops on sides of hills or mountains by planting on graduated terraces built into the slope. On each level, various crops are planted.

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South America’s Amazon river is the world’s largest river. It flows into the South Altantic Ocean. Its length is 6,296 km.

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In 2020, the Red Snow phenomenon occurred in Antarctica due to Chlamydomonas algae blooms, accelerating ice melting.