1.
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?
2.
The most rapidly dwindling natural resource in the world is
3.
Arabari forests of Bengal is dominated by
4.
In our country, vast tracts of forest are cleared and a single species of plant is cultivated. This practice promotes
6.
A successful forest conservation strategy should involve
7.
Select the wrong statement
8.
The three R's that will help us conserve natural resources for long term use are
9.
The pH range most conducive for life of fresh water plants and animals is
10.
The most appropriate definition of a natural resources is that it is a substance/commodity that is
11.
The important message conveyed by the Chipko Movement' is
12.
The main cause for abundant coliform bacteria in the river Ganga is
13.
Opposition to the construction of large dams is due to
14.
Pick the right combination of terms which has no fossil fuel.
15.
Expand the abbreviation GAP
16.
From the list given below pick the items that is not a natural resource
17.
Which of the following is not a natural resource?
18.
Khadins, Bundhis, Ahars and Kattas are ancient structures that are example for
19.
Select the eco-friendly activity among the following
20.
Ground water will not be depleted due to