Algae Biofuel Quiz
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- 1.Biofuels are carbon-neutral. What does this mean?
- A.
It does not release carbon dioxide into the atmosphere at all
- B.
It recycles the carbon content already in the atmosphere
- C.
It is chemically inert to carbon
- 2.The growth cycle of algae is:
- A.
3 months
- B.
30 days
- C.
10 days
- D.
4 weeks
- 3.The oil yield from algae is high because:
- A.
It has a lot of lipids
- B.
It has a short cultivation cycle
- C.
All of the above
- 4.Algae cannot be used as:
- A.
Fertiliser
- B.
Biomass
- C.
Something for removing salt from seawater
- D.
Food
- 5.Why is Algae environmentally friendly?
- A.
Yes, it does not produce carbon dioxide at all
- B.
Yes, it is carbon neutral and may even reduce carbon impact by 70%
- C.
None of the above
- 6.Algae cannot be grown in:
- A.
Ponds
- B.
Sea
- C.
Wastewater
- D.
All of the above
- E.
None of the above
- 7.Harvesting is:
- A.
Separating algae from its medium (oil)
- B.
Separating oil from the algae
- C.
Separating algae from its medium (water)
- 8.Which of the following about closed pond systems is false?
- A.
It solves most of the problems of a open pond
- B.
It is just an open pond system with a greenhouse to close it off
- C.
It is just as complex as an open pond system
- 9.The main reason why open ponds have to be shallow is because:
- A.
It saves money
- B.
It maximises sunlight taken in by the algae
- C.
It saves space
- D.
It maximises nutrients taken in by the algae
- 10.Algae can be grown only in seawater.
- A.
True
- B.
False
- 11.Algae has a yield close to that of peanuts.
- A.
True
- B.
False
- 12.Which of these methods can be used to extract algae?
- A.
Oil press
- B.
Chemical solvent
- C.
Microwave-assisted
- D.
Carbon dioxide as a solvent
- E.
Burning
- F.
Washing under water
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