Answer:
im going to say End Triassic is my favorite you can go on to wiki searching this and find all you are looking for.
something thats helps me is printing out he form and highlighting everything thats important and working from there
Explanation:
Answer:
Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.
Explanation:
