Biogas Flashcards
1
Q
What does biogas do
A
Gets rid of waste, solves energy needs and is renewable
However hard to do on a large scale
2
Q
Where are biogas plants built
A
Underground for insulation
3
Q
What is a biofuel
A
A fuel derived from animal waste or cut down plants
4
Q
How can ethanol based fuels be produced?
A
From anaerobic fermentation of sugar cane juices by the enzyme carbohydrase
5
Q
Name some advantages of biofuels
A
Doesn’t produce toxic gases
Much cleaner
Can be mixed with Petrol
Carbon neutral
6
Q
Name some disadvantages of biofuels
A
Need lots of space
Poor countries grow cash crops instead of feeding people
Leads to starvation
7
Q
How is biogas produced
A
Produced by anaerobic fermentation of a wide range of plants and waste materials that contain carbohydrates
