Question

mention 2 reasons how the rivers of northern plains get polluted

Answer 1

because in that area that is not inside there is very big cities which which is the reason that northern plain get polluted

Answer 2

Hey mate

Here is ur ans☺

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"A major reason for high pollution in the Indo-Gangetic plains is its geography. Located next to the Himalayas, this is a wind convergence zone which transports pollution from other places into these region," said Gufan Beig, project director of System of Air Quality and Weather Forecasting and Research (SAFAR), which monitors air quality in a number of cities.


The convergence factor shows up the most in
winters, when the region sees spells of dense fog due to cold winds coming from the west. Fog traps pollutants, leading to sharp deterioration in air quality.Cold winds also leads to `inversion', wherein pollutants are trapped

Hope it helps u ☺☺⤴⤴