A group of scientists studied seismic waves and observed that the speed of seismic waves changes as they travel deeper into the Earth. Based on the scientists' observations, it can be concluded that Earth may have

Hey there.

Your answer (this is my guess) should be layers. I think this because the change in density of the layers from the inner core of the earth to its crust affects the speed of seismic waves.

So if the speed of seismic waves changed you can most likely deduce that the earth has layers.

If i am correct i would really like a .

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.