Explain why the trilobite fossils in rock layer A are considered to be younger than the yrilobite fossils in rock layer D.

According to the united nations refugee agency, more than 2/3 of the world's refugees come from just five countries. which country is not on that list? a) turkey b) myanmar c) afghanistan d) south sudan

When the soviets created the borders of their central asian and caucus republics, the paid little attention to where each region’s ethic group lived. ethnic-related disputes exist along every sherd boundary in central asia. true false

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves