Which one of the following areas has a high density of population?
A, Marshlands
B, Thick forests,
C, hot deserts
D, river valleys
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Answer:
Option D - River valleys are densely populated.
Explanation:
River valleys: They are thickly populated. Rivers provide plenty of water which is very useful for irrigation, several households and for industrial uses. Rivers bring silt leads to the formation of the alluvial soil. This is the best fertile soil. Farming is the main occupation in the river valleys.
Marshlands: These are wetlands. They are prone to floods. It is not suitable for the population.
Thick forests: These are meant for wildlife. Human beings cannot survive against them.
Hot desserts: Due to hot weather, people cannot survive. There is very limited food and water available.
Hence, river valleys are densely populated.
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