What is mean by demos

If scientists only detect p waves in a certain layer of earths interior what does that tell us?

According to speculation and study, what will happen to the global birth rate in about 40 years? (1 point)

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