$A$ loss of diversity may lead to a loss of ecological stability.

How did the 'Chipko Andolan' ultimately benefit the local population? Give any two benefits.

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?

Although coal and petroleum are produced by the degradation of biomass,we still need to conserve them. Why?

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?

The three $R's$ that will help us to conserve natural resources for long-term use are