What is a fault?

a.)the name for two opposing forces

b.) a type of crust that moves under heavier crust

c.) a crack in earths crust where moment occurs

d.) a volcanic region where new material is being created

Which of the following can scientists estimate geologic time? a.observing rock sequences b.radiometric dating c.comparing fossils d.all of these

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.

Countries trade with each other because resources are not evenly distributed across the globe. true or false