Which situation is the best example of interti

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

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

How have ethnic groups shaped the population in central america and the caribbean? how has migration shaped the population in central america and the caribbean? how has small land areas shaped population in central america and the caribbean? how has a rapid population growth shaped the population in central america and the caribbean?