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Q2
(CDS-I/2010)
Environment & Ecology › Pollution & Conservation › Biological remediation methods
Answer Verified
Which ore of the following plants is popularly grown along the road for absorbing vehicular pollutants ?
Result
Your answer:
—
·
Correct:
C
Explanation
The correct answer is Option 3: Bougainvillea.
Bougainvillea is widely preferred for roadside plantation in India due to its exceptional ability to act as a biological filter. It possesses a high tolerance for air pollution, particularly particulate matter (PM), sulfur dioxide, and nitrogen oxides emitted by vehicles. Its dense foliage and evergreen nature allow it to trap dust effectively and mitigate noise pollution.
- Durability: It is drought-resistant, requires minimal maintenance, and can survive in harsh urban microclimates.
- Other Options: While Neem (Option 2) is an excellent air purifier, it requires more space and is often used for shade rather than as a primary roadside scrub. Nerium (Option 1) and Calotropis (Option 4) have pollutant-absorbing properties, but Bougainvillea is the most "popularly grown" specifically for its rapid growth, aesthetic value, and extreme resilience against heavy vehicular exhaust.
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