16. What kind of plate boundary causes old and heavy crust (rocks) to sink into the mantle (subduction)?
a. Convergent boundary
b. Divergent boundary
C. Transform boundary
d. Transform and convergent boundary 17. A kind of plate boundary which result to the transformation of a fault line like the San Andreas Fault in California USA. a. Convergent boundary
b. Divergent Boundary
c.Transform boundary
d. Transform and convergent boundary 18. How do the plates move at transform boundary?
a.Plates move toward each other
b. Plates move away from each other
C. Plates move past each other
d. Plates do not move
19. Which of the following is an example of transform or shear sliding boundary?
a. Volcano
b. Mid-ocean ridge
c. Deep-sea trench
d. Fault
nakakabuysit ka wag ka mag comm
20. Which plate boundary causes seafloor spreading like the one causing the Atlantic Ocean to divide?
a. Convergent
b. Divergent
c. Transform
d. Transform and Divergent
21. Why is divergent boundary also called constructive?
a.Magma flows up between plates and forms new crust
b. Old ocean floor is re-molted into magma
C. Animals in the ocean construct nests d. Pacific Ocean becomes wider .


salamat kung sino nag answer ng mabuti​