Bharat stage III (BS III) is applicable to

Bharat stage TV (BS IV) is applicable to

Bharat stage II is related to

Newton's III law is applicable _________.

Which of the following statement is not incorrect ? (a) In the 1990s, Delhi ranked fourth among the 40 most polluted cities of the world. (b) All the buses of Delhi were converted to run on CNG by the end of 2000. (c) Euro III norms , for example , stipulate that sulphur be controlled at 350 parts-per- million (ppm) in diesel and 150 ppm in petrol. (d) Mass Emission Standards (Bharat Stage II which is equivalent to Euro - II norms) are applicable in all cities of India.

Stringent fuel norms for vehicles like Bharat stage or Euro norms aims to steadily reduce