Question
Give points of differences : $CNG$ and $CFC$s
| $CNG$ | $CFC$s | ||
| $1.$ | Full name of $CNG$ is Compressed Natural Gas. | $1.$ | Full name of $CFC$s is chlorofluoro-carbons. |
| $2.$ | It is used as a clean: fuel in vehicles and in industries. | $2.$ | It is used in refrigerators, air conditioners and aerosol sprays. |
| $3.$ | it is not a pollutant. | $3.$ | It is a pollutant which damages ozone layer. |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.