|
Which is main component of natural gas? |
|||
|
(a) |
Methane |
(b) |
Ethane |
|
(c) |
Propane |
(d) |
Benzene |
|
Which is main component of natural gas? |
|||
|
(a) |
Methane |
(b) |
Ethane |
|
(c) |
Propane |
(d) |
Benzene |