The theory of continental drift was first proposed by (Points : 3)
2. The theory of continental drift has undergone significant changes due to advances in technology and subsequent since it was first posed in
3. Which of the following forms of evidence was used to formulate Wegener’s theory of Continental Drift?
1. the jigsaw-like pattern of continental coastlines
2. magnetism of the ocean basin rocks
3. discovery of the Mid-Atlantic Ridge
4. radiometric dating of the basaltic rocks
4. What form of technology first allowed researchers to confirm that the Mid-Atlantic Ridge exists?
topographic maps of the ocean floor
remote sensing via satellite
5. Earthquakes are known to occur at the following type of tectonic plate boundary
all of the above
6. The scale for measuring the intensity of earthquakes was invented by
7. _____ waves cannot pass through ____ substances. Mapping the locations where these and other waves transmitted following an earthquake allows for the determining the layers of the _____, as well as the epicenter of an earthquake.
Compressional / solid / earth
Shear / liquid / earth
Compressional / solid / atmosphere
Shear / liquid / atmosphere
8. The following field of science studies the waves of movement in the crust of the Earth:
9. A seismic wave in which the molecules in the rock move back and forth in the same direction as the wave is called
10. Which piece of evidence was not used to support of the theory of plate tectonics?
ages of rocks
magnetic properties of ocean floor materials
ocean floor topography
measurements from radio astronomy
11. Through the use of topographic mapping of the ocean floor, deep fissures in the ocean bottom can be located. These fissures are called
the oceanic deep
a convergent zone
a divergent zone
12. Seismographs can measure the movement that emanates from an earthquake. This movement is called a
13. The study of paleomagnetism and the reversals of rocks supports
14. Which of the following show the order of technological developments related to studying seismology and plate tectonics?
Seismographs, Topographic maps of the ocean floor, Paleomagnetism, Radio Astronomy, Seismic Tomography
Radio Astronomy, Paleomagnetism, Topographic maps of the ocean floor,
Seismic Tomography, Seismographs
Seismographs, Paleomagnetism, Seismic Tomography, Topographic maps of the ocean floor, Radio Astronomy
Topographic maps of the ocean floor, Seismic Tomography, Paleomagnetism, Radio Astronomy, Seismographs
15. Which of the following was used as evidence for plate tectonics?
topographic profiles of the ocean floors
maps on rock magnetism
data classifying rocks by age
sea floor spreading
all of these are correct
16. Which of the following correctly describes earthquakes?
Earthquakes are an abrupt release of energy
Prediction of earthquakes is an established science, which gives global citizens a chance to evacuate ahead of time.
Earthquakes have never occurred in the middle of the USA
No earthquake has been measured higher than 7 on the Richter scale
All earthquakes happen within one kilometer of the Earth’s surface
17. What evidence convinced most scientists to accept the theory of plate tectonics?
magnetism of the ocean basin rocks
discovery of the Mid-Atlantic Ridge
radiometric dating of the basaltic rocks
all of these are correct
18. What causes the ‘Ring of Fire,’ which borders much of the Pacific Ocean?