SUMMATIVE TEST #4

1. Rocks are older in the mid-ocean ridge

• TRUE

• FALSE

2. Rocks far from the mid-ocean ridge are younger.

• TRUE

• FALSE

3. Sediments are thinner at the ridge.

• TRUE

• FALSE

4. Rocks at the ocean floor are younger than those at the continents.

• TRUE

• FALSE

5. Most basalt magmas contain abundant molten iron.

• TRUE

• FALSE

6. SONAR means Sound Navigation and Radio Ranging.

• TRUE

• FALSE

7. DURING THE 1960’s Harry Hess and Robert Dietz suggested an explanation for the movement of the continents called Seafloor Spreading Theory.

• TRUE

• FALSE

8. Alfred Wegener proposed the Continental Drift Theory.

• TRUE

• FALSE

9. Pangaea means all about earth.

• TRUE

• FALSE

10. Scientists found Glossopteris in India, Antarctica, Australia, and Madagascar.

• TRUE

• FALSE