Which type of volcano formation would typically be found under a convergent boundary?
a) chain
b) paired
c) single
d) triangulated

A Chain volcano is the type of volcano formation typically be found under a convergent boundary. The correct answer is A. Chain volcanoes can be found in many places, the largest chain is located in Australia. 

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”