12. [tg.05] what happens to an earthquake's p-waves when they strike the liquid core? (2 points) they bounce off. they are absorbed. they change into s-waves. they change into r-waves.

Which of the following terms describes the layers of air surrounding the earth ?

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction

Which of the following regions suffers the most from acid rain? a. the area around vancouver c. the area below atlanta b. the area below detroit d. the area above montreal