Which of these remains unchanged during the compaction of sediments? a) mass. b) color. c) volume or d) pore space

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Explain why the rate of urbanisation is in the way it is between developed and undeveloped countries.

The pacific islands that lie along tectonic plates may have volcanic activity are uninhabited may not have agricultural economies are located in the tasman sea