Question

1. i saw that rock from the mantle is added to the edges of both plates at ​ plate boundaries, where the plates move ​ each other.
2. i saw that one plate sinks into the mantle and is destroyed at ​ plate boundaries, where the plates move ​ each other.

Explanation:

Question 1:

For the first blank about plate boundaries where mantle rock is added to plate edges, this occurs at divergent plate boundaries. At divergent boundaries, plates move apart from each other, allowing magma (rock from mantle) to rise and add to the plate edges.

For the second blank about plate boundaries where one plate sinks into the mantle, this is at convergent plate boundaries. At convergent boundaries, plates move toward each other, causing one plate to subduct (sink) into the mantle.

Answer:

First blank: divergent; Second blank: apart from

Question 2: