Which statement is true of p- waves ?

a. they travel the fastest through rocks
b. they vibrate at 90 degree to the wave motion
c. they are last to reach the epicenter
d. they are the most damaging

In which direction is the pacific plate moving in relation to the north american plate?

Building glycogen from glucose molecules is an example of what

Which is an innovation of gymnosperms? gymnosperms are the first seed plants. gymnosperms are the first flowering plants. gymnosperms are the first vascular plants. gymnosperms are the first spore plants.