Home / Unit-11 Environmental Chemistry Air / Question
MCQ
Which of the following is the main source of particulate matter in urban air?
Unit-11 Environmental Chemistry Air
A Photosynthesis
B Combustion of fuels and industrial processes
C Evaporation of water
D Respiration of animals
Explanation

Fuel burning, industries, and vehicles release particulate matter into the air.

Related MCQs

Which layer of the atmosphere lies just above the stratosphere?
Unit-11 Environmental Chemistry Air View
Which of the following health problems is caused by excessive ultraviolet radiation?
Unit-11 Environmental Chemistry Air View
Among the noble gases, which one is present in the highest amount in air?
Unit-11 Environmental Chemistry Air View
In which atmospheric layer do most meteors burn up?
Unit-11 Environmental Chemistry Air View
Which gas is released by plants during photosynthesis?
Unit-11 Environmental Chemistry Air View
Which is the outermost layer of the atmosphere?
Unit-11 Environmental Chemistry Air View