Group 4:
Owen ( 24 )
Hwa Suen ( 36 )
Zane ( 37 )
Kun Lin ( 38 )
Zacharia ( 39 )

Link: http://www.youtube.com/watch?v=-kR6EUKKxj8&feature=youtu.be&hd=1

Question : Discuss the effects of methane and unburnt hydrocarbons.