Q8 of 47 Page 491

Opposition to the construction of large dams is due to:

All three i.e. social, economic, environmental reasons are main opposition for contruction of large dams.

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6

The pH of 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?

 7

Groundwater will not be depleted due to:

 9

Khadins, Bundhis, Ahars and Kattas are ancient structures that are example for:

 10

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