Class 9 geography chapter 3 drainage question and answer

 Here are Class 9 Geography Chapter 3: Drainage – Questions and Answers

💧 Class 9 Geography Chapter 3: Drainage – Questions and Answers

📘 1. Multiple Choice Questions (MCQs)

Q1. The river which forms the world’s largest delta is:
a) Ganga
b) Brahmaputra
c) Godavari
d) Narmada
👉 Answer: a) Ganga

Q2. Which river is known as the "Dakshin Ganga"?
a) Krishna
b) Cauvery
c) Mahanadi
d) Godavari
👉 Answer: d) Godavari

✅ 2. True or False

Q3. Narmada and Tapi rivers drain into the Arabian Sea.
👉 True

Q4. The Ganga is a west-flowing river.
👉 False (It flows eastward)

✍️ 3. Fill in the Blanks

Q5. The largest river basin in India is formed by the _______ river.
👉 Ganga

Q6. Rivers that originate in the Western Ghats and flow eastward are called ________ rivers.
👉 Peninsular

🔤 4. One-word Answers

Q7. Name the river that flows through a rift valley and drains into the Arabian Sea.
👉 Narmada

Q8. Which river is known for changing its course frequently?
👉 Kosi

💬 5. Short Answer Questions

Q9. What is a drainage basin?
👉
A drainage basin is the area drained by a single river system, including its tributaries and distributaries.

Q10. Name any four major rivers of the peninsular India.
👉

  1. Godavari

  2. Krishna

  3. Mahanadi

  4. Cauvery

📝 6. Long Answer Question

Q11. Differentiate between Himalayan rivers and Peninsular rivers.

FeatureHimalayan RiversPeninsular Rivers
SourceOrigin in glaciersOrigin in Western Ghats or central highlands
FlowPerennial (flow year-round)Seasonal (depend on rainfall)
CourseLong and windingShort and straight
DepositsForm deltas and alluvial plainsMostly rocky and form waterfalls

🌊 7. Extra Conceptual Questions

Q12. What is a delta and how is it formed?

👉
A delta is a triangular landform formed at the mouth of a river where it deposits sediments as it enters a slower-moving or standing body of water (like a sea). The Ganga-Brahmaputra Delta is the world’s largest delta.

Q13. What are the differences between east-flowing and west-flowing rivers?

Flow DirectionEast-Flowing RiversWest-Flowing Rivers
DirectionFlow into Bay of BengalFlow into Arabian Sea
ExampleGodavari, KrishnaNarmada, Tapi
Delta or EstuaryForm deltasForm estuaries

🗂️ Summary for Quick Revision

  • India has two major river systems: Himalayan Rivers and Peninsular Rivers

  • Ganga is the longest river in India

  • Narmada and Tapi are west-flowing rivers

  • Deltas and estuaries are landforms created by rivers at their mouth 

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