UPSC 2017: 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:

Algal biomass can be cultivated in inland raceway ponds, photobioreactors or wastewater lagoons as well as in marine sites; limiting it ‘to seas only’ is wrong, so statement 1 is incorrect. Designing and commissioning commercial-scale algal bio-refineries demands advanced engineering skills and capital that developing countries often lack, making statement 2 correct. Achieving cost competitiveness generally requires very large installations whose land-, water- and nutrient-demand can trigger ecological and social objections, so statement 3 is also correct. Therefore, statements 2 and 3 only are correct. ([edukemy.com](https://edukemy.com/blog/upsc-prelims-2017-question-22/?utm_source=openai))