What is  deterritorialization  and reterritorialization

What does the plate tectonic theroy describe?

Which statement is an accurate description of life in mongolia in recent years? the majority of the population now lives in cities. after a brief period of democracy, communists regained control of the government. subsistence farming remains the primary economic activity in the country. relations between mongolia and china are now tense. -gradpoint

Impact of over population and under population?