In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique? 1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature. 2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms. 3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation. Select the correct answer using the code given below:

QUESTION

Hard

Environment & Ecology

Prelims 2017

In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique?

It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.
Genetic engineering can be used to create microorganisms specifically designed for bioremediation.

Select the correct answer using the code given below:

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Explanation

Bioremediation is a technique that utilizes living organisms, primarily microorganisms like bacteria and fungi, to remove or neutralize contaminants from polluted environments. It essentially harnesses and accelerates natural biodegradation processes for environmental cleanup.

Statement 1 (correct): This accurately describes a key advantage of bioremediation. It leverages and accelerates natural biodegradation processes by introducing suitable microorganisms or optimizing environmental conditions.

Statement 2 (incorrect): Bioremediation can be effective for many contaminants but not all. Heavy metals like cadmium and lead are often not readily broken down or removed completely. They might be transformed or immobilized, but not necessarily eliminated.

Statement 3 (correct): Genetic engineering offers a promising approach for developing microorganisms with enhanced capabilities for bioremediation. These engineered microbes can target specific pollutants or work more efficiently in challenging environments.