Biofuels

The primary constituent of biogas is

Which of the following crops are used for producing biofuels?
A. Sugarcane
B. Corn
C. Potato

Match List I with List II

LIST I		LIST II
A	Bio-diesel	I	needs low temperature and high pressure
B	Pyrolysis	II	an upgraded vegetables oil
C	Liquifaction of bio mass	III	direct combustion of biomass
D	Incineration	IV	biomass into more useful products.

Choose the correct answer from the options given below: