the use of CNG is better than petrol because 1.cheaper 2.less pollutin

1.	the use of CNG is better than petrol because 1.cheaper 2.less polluting 3.cannot be adultrated 4.all of the above
Answer» ANSWER: all the above HOPE it is USEFUL

the use of CNG is better than petrol because 1.cheaper 2.less polluting 3.cannot be adultrated 4.all of the above

Answer»

all the above