Where are volcanoes and earthquakes likely to occur?
a. where the earth’s core is cooledb. where plates collide or pull apartc. where plates do not moved. where the earth’s crust is very thick

B. Topic is under plate tectonics and involves divergence,convergence and transform plate boundary:)

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.”

Check -it can you examine advantages and drawbacks to possible solutions.check-it can you consider options to solve a problem.check-it can you persuade an audience to support a proposal.check-it can you identify the cause of a problem.