Transcription of Chapter-3 (Version 4) 07-01-06 - NCERT
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Chapter-3 (Version 4) 07-01-06 - NCERT
You have observed water flowing throughthe rivers, nalas and even channelsduring rainy season which drain theexcess water. Had these channels not beenthere, large-scale flooding would haveoccurred. Wherever channels are ill-defined orchoked, flooding is a common flow of water through well-definedchannels is known as drainage and thenetwork of such channels is called a drainage system . The drainage patternof an area is the outcome of the geologicaltime period, nature and structure ofrocks, topography, slope, amount ofwater flowing and the periodicity ofthe you have a river near your village or city?Have you ever been there for boating or bathing?Is it perennial (always with water) or ephemeral(water during rainy season, and dry, otherwise)?
the Bay of Bengal or in the Arabian Sea. Identify these rivers of North India. Large rivers flowing on the Peninsular plateau have their origin in the W ester n Ghats and dischar ge their waters in the Bay of Bengal. Identify these rivers of the South India. The Narmada and Tapi are two large rivers which are exceptions. They along with many
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