REVIEW 3

Question 1

21. The area where two tectonic plates meet.
    a. Mantle
    c. focus
    b. plate boundary
    d. convection

Answer 1

b. plate boundary

Question 2

22. The idea that continents were once part of a single landmass that broke apart and moved.
    a. Continental Drift
    b. Tectonic Plates
    c. Transform
    d. Plate Boundaries

Answer 2

a. Continental Drift

Question 3

23. The movement of the tectonic plates is
    caused by.
    a. the rotation of the Earth.
    b. convection currents in the Asthenosphere
    c. the gravity of the iron-nickel core.
    d. the Moho discontinuity.

Answer 3

b. convection currents in the Asthenosphere

Question 4

24. The theory of continental drift states that all the continents were once part of one big landmass called Pangaea. Who was the scientist that came up with this theory?
    a. Harry Hess
    c. Bill Nye
    b. Alfred Wegener
    d. Albert Einstein

Answer 4

b. Alfred Wegener

Question 5

25. Which of the following evidence was used to support theory of continental drift?
    м2cata 916
    a. Continents fit together like a puzzle
    b. Similar fossils were found on separate
    continents
    c. Different types of rock, mountain structures, landforms are found all over the world.
    d. All of the above
    e. Only A and B

Answer 5

e. Only A and B

Question 6

26. If you took rock samples from the Mid-Atlantic Ridge, the youngest rock would be
    a. located where the plates collide
    b. located at the place where rocks are furthest from the rift valley
    c. Located at the center of the ridge (rift valley), where oceanic crust is formed
    d. none of the above; all the rocks would be the same age

Answer 6

c. Located at the center of the ridge (rift valley), where oceanic crust is formed

Question 7

27. Seafloor Spreading occurs at a
    a. convergent boundary
    b. divergent boundary
    c. transform boundary
    d. continental boundary

Answer 7

b. divergent boundary

Question 8

28. Tectonic plates float on top of the..
    a. Crust
    b. asthenosphere
    c. lower mantle
    d. outer core

Answer 8

b. asthenosphere

Question 9

29. This map shows volcanic and earthquake activity. Where is the highest concentration of activity?
    a. all along the Atlantic Ocean
    b. all along the Pacific Ocean
    c. all along the coast of Africa
    d. all along Indian Ocean

Answer 9

b. all along the Pacific Ocean

Question 10

30. What is the densest type of crust?
    a. continental crust
    c. oceanic crust
    b. mantle crust
    d. convergent crust

Answer 10

c. oceanic crust