Can someone help me with this Chemistry? Watch
Then its distilled. Why? Becuase both ethanol and water are liquids, but have different boiling points. Which means they can be evaporated at different temp. By looking online, it says ethanol boils at 78 degrees, so it evaporates first, and can be cooled into a flask.
Biofuels - requires farmland - less food crops
The plants used to grow the biofuels absorb CO2, so less CO2 is released overall.
Make sure you understand what its asking btw.