- A It generally requires large areas of fertile agricultural land, placing it in noticeable competition with conventional food crops according to most researchers in the majority of cases studied
- B It can be grown on waste water using non-agricultural substrates, has a very short generation time, and yields protein per unit area far exceeding conventional crops or livestock
- C It mainly supplies a genuinely complete dietary protein profile when combined with several other separate food sources as widely reported in standard practice under most conditions encountered
- D It fundamentally depends on fairly expensive technology that consequently remains largely inaccessible to many developing nations as frequently observed in practice in many documented cases
Correct answer: B. It can be grown on waste water using non-agricultural substrates, has a very short generation time, and yields protein per unit area far exceeding conventional crops or livestock
Explanation: Spirulina and other SCP sources can grow on non-agricultural substrates (waste water, industrial effluents), have extremely rapid doubling times, and can produce vastly more protein per unit area than conventional agriculture, potentially feeding billions without additional agricultural land use.
Concept context
Learn about animal husbandry, plant breeding, tissue culture, biofortification, and single cell protein.
Read the full Strategies for Enhancement in Food Production notes →