Which are the other equivalent norms to Euro-II norms ?

Which of the following statements is inaccurate ?

What was observed within a period of 1997 and 2005 in Delhi as regards to air quality ?

When was Air (Prevention and Control of Pollution) Act amended to include noise as an air Pollutant ?

Which of the following is not the measure to reduce the noise pollution ?

How does CO affect plant respiration ?

Acid rains are produced by

How much decibel sound is produced by the jet plane or rocket ?

To what decibel level noise rises during festive seasons due to crackers ?

dB is the standard abbreviation used for the quantitative expression of