Precise measurements of the motion of earth's lithosphere provide evidence for which process

a. plate techtonics
b. seafloor spreading
c. mantle convection
d. all of the above

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

What are examples of the plant life and animal life that can be found in each type of terrarium

Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.