It is possible to produce algae based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry ? 1. Production of algae based biofuels is possible in seas only and not on continents. 2. Setting up and engineering the algae based biofuel production requires high level of expertise/technology until the construction is completed. 3. Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns. Select the correct answer using the code given below :
- (a) 1 and 2 only
- (b) 2 and 3 only ✓ UPSC's answer
- (c) 3 only
- (d) 1, 2 and 3
Why the answer is (b)
• Algal biofuel can be produced on land in open ponds or photobioreactors, so statement 1 is wrong.
• Statement 2 is correct: designing photobioreactors, strain selection and processing require advanced expertise that developing countries often lack.
• Statement 3 is correct: commercial viability needs very large facilities using land, water and nutrients, raising ecological and social concerns.
• Hence 2 and 3 only, option (b).
Why the other options are wrong
- (a) 1 and 2 only
- Statement 1 is wrong: algae can be grown on land.
- (c) 3 only
- Statement 2 on expertise is also a limitation.
- (d) 1, 2 and 3
- Statement 1 is wrong.
Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2017, held on 18 June 2017. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.