Topic: Conservation, environmental pollution and degradation, environmental impact assessment.
6. Bio-remediation is an environmentally friendly and cost-effective approach to cleaning up contaminated sites. Critically analyse. (250 words)
Difficulty level: Moderate
Reference: investopedia.com
Why the question:
The question is part of the static syllabus of General studies paper – 3 and mentioned as part of Mission-202 Secure timetable.
Key Demand of the question:
To write about the different types of bio-remediation techniques and their advantages and limitations in cleaning up polluted environments.
Directive word:
Critically analyze – When asked to analyse, you must examine methodically the structure or nature of the topic by separating it into component parts and present them in a summary. When ‘critically’ is suffixed or prefixed to a directive, one needs to look at the good and bad of the topic and give a balanced judgment on the topic.
Structure of the answer:
Introduction:
Begin by defining bio-remediation and explain it briefly.
Body:
In brief, write about the different types of bio-remediation techniques like phytoremediation, mycoremediation, and microbial remediation, and how they work.
Next, write about the advantages of bio-remediation, such as being cost-effective, environmentally friendly, and non-invasive, among others.
Next, write about the limitations of bio-remediation, such as long timeframes, lack of predictability, and inability to remove certain pollutants, among others.
Conclusion:
Conclude by mentioning about the potential of bio-remediation.
