1)  In India National Air Quality Index is determined on the basis of concentration of ------ pollutants.

A) 6

B) 5

C) 4

D) 8

India’s National Air Quality Index (AQI), developed by the CPCB, is computed using eight pollutants: PM2.5, PM10, NO₂, SO₂, CO, O₃, NH₃ and Pb (lead).

For each pollutant a sub-index is calculated from its concentration using prescribed breakpoints; the overall AQI value for a location is the maximum of these pollutant sub-indices (i.e., the worst/most critical pollutant determines the AQI).

This approach ensures the AQI reflects the pollutant that poses the highest immediate health risk at that time.

Ans)  D) 8


2)  In terms of the number of students enrolled, which is the largest university in the world?

A) Harvard University

B) Cambridge University

C) Indira Gandhi National Open University

D) UK Open University

Indira Gandhi National Open University (IGNOU) is a national open/distance-learning university in India that enrolls learners across the country and abroad through a very large number of undergraduate, postgraduate, diploma and certificate programmes. Because it is an open university with nationwide reach and distance-education delivery, its total student enrollment (counting all distance learners) is far larger than typical residential universities such as Harvard or Cambridge or even the UK Open University. Hence IGNOU is regarded as the largest university in the world by number of students enrolled.

Ans)  C) Indira Gandhi National Open University