Direction: Read each item carefully and choose the letter of the best answer. Write only the
letter on the space before each item.
1. The theory states that continents are situated on slabs of rocks which drifted
across the earth over time which originally joined together as a super continent.
a. Plate Tectonics theory b. Continental Drifting
c. Pangaea
d. All of the Above
2. An ancient, huge land mass composed of earlier form of today's continents;
an ancient supercontinent.
a. plates
b. Pangaea
C. trench
d. lithosphere
3. When two plates will collide with each other, the following landforms are
created except for:
a. Mountain ranges b. rift valleys
C. volcano
d. island arc
4. If oceanic plates and continental plates will converge with each other, it will
form a:
a. Trench
b. Mountain Ranges c. Magma plume d. Rift Valleys
5. When two tectonic plates collide, the oceanic crust usually subduct beneath
the continental crust because it is
a. denser than continental crust
c. thicker than continental crust
b. less dense than continental crust
d. thinner than continental crust
6. 4. If you visit a place in the Pacific known to be along converging plates,
which of these should you NOT expect to see?
a. active volcanoes
c. rift valleys
b. mountain ranges
d. volcanic islands
7. You are an oceanographer and want to map the ocean floor on the east
coast of the Philippines. As you do your study, you notice that there is a portion in the ocean
floor which is relatively much deeper
than the rest. What most likely is that deeper part?
a. linear sea
c. rift valley
b. oceanic ridge
d. trench
8. What do you expect to find at a mid-ocean ridge?
a. relatively young rocks
c. thick accumulation of sediments
b. reverse fault
d. very ancient rocks
9. What makes up the lithosphere?
a. Continental crust
b. Crust and the upper mantle
c. Oceanic crust and continental crust
d. Upper mantle