Why most of the Himalayan rivers are perennial ?
“Rivers and water bodies play a vital role in shaping India’s geography and supporting life CBSE 2024-2025 NCERT Social Science Class 9th Chapter 3 Drainage MCQ Question helps students understand the major river systems of India including the Himalayan and Peninsular rivers their origin flow patterns and significance This chapter also covers topics like the Ganga Brahmaputra basin river pollution and water conservation Through MCQ Question students can test their knowledge and explore how drainage systems impact agriculture economy and daily life making this topic essential for exams and real-world awareness”
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The correct answer is: (d) Both (a) and (b)
Explanation: Himalayan rivers are perennial, meaning they flow throughout the year. This is because they receive water from two major sources:
(a) Rainfall – During the monsoon season, heavy rainfall contributes significantly to the flow of these rivers.
(b) Melted snow from mountains – The Himalayas are covered with glaciers, which melt gradually and provide a continuous supply of water, even during dry seasons. This question related to Chapter 3 Social Science Class 9th NCERT. From the Chapter 3 Drainage. Give answer according to your understanding.
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