The most rapidly dwindling resource in the world is …………. .

Sardar Sarovar dam is constructed on which river?

Groundwater will not be depleted due to :

Surangams are the age – old concept of water harvesting in:

Which of the following is the age old concept of water harvesting system in Madhya Pradesh?

Which of the following canals brought about greenery in Rajasthan?

Which of the following is the ‘biodiversity hot spots’?

Arabari forests of Bengal is dominated by :

Pick the right combination of terms which has no fossil fuel:

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

Which $P^{H}P^H$ range is most suitable for life of fresh water plants and animals?

The degraded Arabari forests were revived by the efforts of:

The Tehri Dam is constructed on river :

Khadins, bundhis, ahars and Kattas are ancient structures built for the purpose of:

The better way to assess the pollution level of a water body is to calculate the: