NEET2011BotanyEnvironmental IssuesActual
Which of the following statements is correct?
Options
- ACatalytic converter can separate particulate matter of diameter less than 2.5 micrometers.
- BHistones are acidic in nature that forms core for DNA packaging.
- CLactobacillus is not present in dough used in idli formation.
- DTemplate with polarity 5^ 3^ has continuous DNA replication.
Correct answer
A. Catalytic converter can separate particulate matter of diameter less than 2.5 micrometers.
Step-by-step solution
According to Central Pollution Control Board (CPCB), particulate size 2.5 micrometers or less in diameter (PM 2.5) are responsible for causing the greatest harm to human health. These fine particulates can be inhaled deep into the lungs and can cause breathing and respiratory symptoms, such as irritation, inflammations and damage to the lungs and premature deaths.