What is the primary cause of soil erosion in mountainous areas?
The correct option is (B) High rainfall and steep slopes. Mountainous regions experience soil erosion primarily due to heavy rainfall and steep slopes. Water quickly runs off, carrying soil away, making erosion control practices like terrace farming essential for preserving mountain soil.
Class 6 NCERT Social Science India and the World: Land and the People Chapter 3 Landforms and Life
class 6 Social Science Textbook Chapter 3 question answer
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In mountainous areas, high rainfall combined with steep slopes leads to rapid water runoff, which removes topsoil and causes erosion. The absence of vegetation worsens this, as roots that bind soil are sparse. Terrace farming helps mitigate soil erosion by slowing down water flow, preserving soil on slopes. Soil erosion in mountains affects agriculture and settlements, highlighting the need for conservation practices to protect land in erosion-prone, high-altitude regions.
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