Environment

Biodiversity, climate change, pollution, protected areas. Filter by topic or year.

2 questions

2017 · Question 14 · Pollution
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 :
Choose your answer(a)1 only(b)2 and 3 only(c)1 and 3 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2017 · Question 59 · Pollution
Biological Oxygen Demand (BOD) is a standard criterion for
Choose your answer(a)Measuring oxygen levels in blood(b)Computing oxygen levels in forest ecosystems(c)Pollution assay in aquatic ecosystems(d)Assessing oxygen levels in high altitude regions
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)