In which row is the air pollutant not correctly matched with its source? air pollutant
Source
A
carbon monoxide
B
incomplete combustion of fuels
burning petrol in cars
decomposing vegetation
burning coal and other fossil fuels
lead compounds
nitrogen oxides
sulfur dioxide
С
D

b

Explanation:

have a great day because if you dont you and i will be sad

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.