Ground-level ozone forms mainly when NOx and VOCs react with:
ADense winter fog
BPresence of sunlight
CHeavy rainfall drops
DHigh air humidity
Answer & Solution
Correct answer: B. Presence of sunlight
Sunlight drives the photochemical reaction between nitrogen oxides and volatile organic compounds to generate ozone.
Keep practising Atmospheric Pollution
Browse all Atmospheric Pollution questions for ICSE Class 9, or explore more Chemistry topics.
Related questions
Match each particulate pollution term with its health effect:Match each air quality management device with its mechanism:Match each environmental consequence with the pollutants causing it:Match each atmospheric pollutant with its major anthropogenic source:Which substance is added in wet scrubbers to remove SO2 from stack gases?In acidified lakes, most fish eggs fail to hatch when water pH drops below:Which vital nutrient cations are leached from forest soils by acid rain?Which toxic element is mobilized from soil minerals by acid rain?