choose the letter of the correct answer .
1.it is the older plate.
a. continental b. oceanic
2.it is the thicker plate
a continental b. oceanic
3.it happens when two oceanic plate move apart and new crust is formed.
a. crustal integrating
b. seafloor spreading
4.it happens when one plate is pushed under another plate as they collide.
a. subduction
b. mantle induction
5.it is the phenomenon that can happen when two plates slip past one another.
a. earthquakes
b. volcanoes
6.it can form when two continental plates collide
a. folded mountains
b volcanoes
7.it creates new crust
a. magma form the mantle
b. sediments from eroded continents​