NEET2005BotanyEnvironmental IssuesActual
Assertion : A suspended particulate matter (SPM) is an important pollutant released by diesel vehicles. Reason : Catalytic converters greatly reduce pollution caused by automobiles.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion
- BIf both assertion and reason are true but reason is not the correct explanation of assertion
- CIf assertion is true but reason is false
- DIf both assertion and reason are false.
Correct answer
B. If both assertion and reason are true but reason is not the correct explanation of assertion
Step-by-step solution
SPM (Suspended Particulate Matter) is defined as particles floating in the air with a diameter below 10 m . Studies have shown that high SPM concentrations in the air can have a detrimental impact on respiratory organs. SPM is generated from natural sources (e.g., volcanoes or dust storms) and human activities (vehicles, incinerators and industrial plants). Catalytic converter is a device designed to reduce the amount of emissions from automobiles. The current (so-called three-way) systems use a heated metal cataly