Non-judicious use of forest resources has a very little effect on biodiversity.

The main cause for abundant coliform bacteria in the river Ganga is

Which one of the following is considered as liquid gold?

The $pH$ of a water sample collected from a river was found to be acidic in the range of $3.5-4.5$. On the banks of the river were several factories that were discharging effluents into the river. The effluents of which one of the following factories is the most likely cause for lowering the $pH$ of river water?

In which year did Amrita Devi Bishnoi sacrifice her life for the protection of $Khejri$ trees?

"We need to manage our resources." List two reasons to justify this statement.