When does a trellis drainage pattern develop?
In trellis pattern main and tributary streams form a lattice-like arrangement. Exam tip: remember parallel rock bands.
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SubjectsGeography
भारत की अपवाह प्रणालियाँ
In this Class 9 Geography topic from the chapter Drainage, students learn how water flows across India through river systems, drainage basins, and networks. They explore the Himalayan and Peninsular river systems, compare their origins, courses, seasonal flow, and landforms, and understand patterns such as dendritic, trellis, and radial drainage. The topic also introduces the importance of rivers and lakes, along with concerns related to floods, pollution, and water management.
TOPIC PRACTICE
Up to 20 questions from this page. Select your focus, then start.
In trellis pattern main and tributary streams form a lattice-like arrangement. Exam tip: remember parallel rock bands.
View question detailsIn radial pattern streams flow outward from a central highland. Exam tip: remember highlands such as Amarkantak.
View question detailsSteep slopes in high Himalayan areas help rivers cut deeply. Exam tip: connect young mountains with strong erosion.
View question detailsThe Peninsular plateau is old and stable so its river valleys are mature. Exam tip: link old plateau with mature rivers.
View question detailsA large part of the Indus system flows in Pakistan. Exam tip: also remember its tributaries in India.
View question detailsThe main stream Bhagirathi rises from the Gangotri Glacier. Exam tip: also remember the confluence of Bhagirathi and Alaknanda.
View question detailsAt Devprayag Bhagirathi and Alaknanda meet and are called Ganga. Exam tip: connect confluence places with river systems.
View question detailsThe Ganga and Brahmaputra together form a huge delta. Exam tip: connect the Sundarbans with this delta.
View question detailsThe Godavari flows eastward into the Bay of Bengal. Exam tip: connect east-flowing rivers with deltas.
View question detailsOn the eastern coast rivers deposit sediments and form deltas. Exam tip: remember Mahanadi Godavari Krishna and Kaveri.
View question detailsThe western coast is narrow so rivers reach the sea in a short distance. Exam tip: connect west-flowing rivers with estuaries.
View question detailsThe Mahanadi rises in Chhattisgarh and reaches the Bay of Bengal in Odisha. Exam tip: remember its east-flowing nature.
View question detailsThe Krishna flows eastward into the Bay of Bengal. Exam tip: remember Krishna with Godavari and Kaveri.
View question detailsThe Kaveri rises in the Western Ghats of Karnataka and generally flows eastward through Tamil Nadu before entering the Bay of Bengal. Hence, it is an east-flowing Peninsular river. Rivers flowing westward generally drain into the Arabian Sea, so option A is incorrect. Exam tip: also remember that the Kaveri forms a delta near its mouth.
View question detailsA tributary joins while a distributary branches away. Exam tip: remember distributaries in delta areas.
View question detailsA delta forms by deposition of sediments brought by a river. Exam tip: connect deposition with delta.
View question detailsIn inland drainage the river does not reach the sea. Exam tip: remember some rivers of Rajasthan as examples.
View question detailsLuni is considered a major inland river of Rajasthan. Exam tip: connect it with desert drainage.
View question detailsLarge basins and heavy rainfall can increase floods in Himalayan rivers. Exam tip: connect floods with catchment and monsoon.
View question detailsThe Brahmaputra carries high water and sediment load. Exam tip: connect Assam floods with the Brahmaputra.
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