Which of the following BEST illustrates a primary air pollutant?
A. Carbon dioxide released from the burning of coal.
B. Sulfur trioxide produced when sulfur dioxide reacts with oxygen in the air.
C. Ozone produced in photochemical smog.
D. Carbon dioxide released through photosynthesis.
Answer (2)
Among the options, carbon dioxide released from burning coal is the best example of a primary air pollutant, as it is emitted directly into the atmosphere. The other options either involve secondary pollutants or natural processes. Understanding the differences between primary and secondary air pollutants is essential for recognizing their impact on the environment. ;
The best illustration of a primary air pollutant among the options provided is carbon dioxide released from the burning of coal, as it is emitted directly into the atmosphere. Other options either represent secondary pollutants or natural processes. Understanding the distinction between primary and secondary pollutants is crucial for environmental science.
;
