ENVIRONMENT FOR UPSC PRELIMS 2020 , SOLUTION OF TEST-28

1 . Answer (c)

2 . Answer (a)

The new National Air Quality Index (AQI) launched in 2014 can be described as a ‘One Number- One Colour-One Description’ for the common man to judge the air quality within his vicinity.
The current measurement index for air quality  considers eight pollutants or parameters (PM10, PM2.5, Nitrogen dioxide (NO2), Sulfur dioxide (SO2), Carbon monoxide (CO), ozone (O3), Ammonia (NH3), and Lead (Pb)).
There are six AQI categories, namely Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.

3 . Answer (c)

Shola forest are the source of water in rivers live Cauvery, Thamirabarani, Vaigai. Unlike other rivers in the peninsular region these rivers are perennial and they never go dry like the Ganges in the North India.
River Ganges is perennial because it is fed by the melting glacier all the year round. There is no ice in the Western Ghats and yet these rivers manage to supply water all-round the year. The reason behind this is the presence of Shola forests.

4 . Answer (c)

5 . Answer (c)

6 . Answer (a)

The Environmental Performance Index (EPI) is a method of quantifying and numerically marking the environmental performance of a state’s policies.
EPI is developed by Yale University (Yale Center for Environmental Law and Policy) and Columbia University (Center for International Earth Science Information Network) in collaboration with the World Economic Forum and the Joint Research Centre of the European Commission.

7 . Answer (c)

8 . Answer (d)

9 . Answer (d)

10 . Answer (b)

National Board for Wildlife (NBWL) is a statutory Board constituted in 2003 under Section 5 of the Wild Life (Protection) Act, 1972.