Arabari forest of Bengal is dominated by :

The pH of a sample of water collected from a river is found to be in the range of 3.5 to 4.5. The most likely reason for this is the waste being discharged into the river from a :

Which of the following statement is incorrect ?

Groundwater will not be depleted due to :

Ahars, Kattas, Bhundhis and Khadins are the modes of :