What do plate boundaries and volcanoes have to do with the formation of minerals

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today

Chris lives in a city that experiences heavy rainfall with average annual precipitation of 882 millimeters. it is warm all year.mark lives in city with an average annual rainfall of 40 millimeters. it has hot summers and cool winters.chris's city is in a climate, while mark's city is in a climate.

Which of the following terms best characterizes the government of somilia