1. Early mapmakers thought continents might have moved based on their observations of

a. magnetism.
b. rock and fossil evidence.
c. matching coastlines
d. earthquakes and floods.

2. Pangaea was an ancient supercontinent made up of
a. South Africa, India, Australia, and
South America.
b. The United States, Greenland, and Europe
c. Antarctica, India, and South
America
d. all of Earth's continents.

3. To säpport his hypothesis of continental drift, Alfred Wegener did NOT use
a. ancient climatic evidence.
b. magnetic field data
c. data on ancient reptiles and ferns
d. evidence from rock formations.

4. Fossit evidence that supported Wegener's idea of continental drift included
Ocean mammals.
a. land-dwelling animals.
b. ocean plants.
c. ocean mammals
d. tropical flowers.

5. Fossils of aquatic reptiles found in freshwater rocks suggested to Wegener that these reptiles

a. swam the great distances between continents.
b. probably did not cross the oceans.
c. ate Glossopteris
d. once lived in Earth's oceans.

6. Based on observations of fossils of Glossopteris, Wegener concluded that

a. magnetic reversals had occurred in Earth's past.
b. continental rocks containing these fossils had once been joined.
c. Earth's continents were never joined.
d. Glossopteris grew only in the tropics.

7. Coal beds in Antarctica indicated to Wegener that this continent was
a. always cold.
b. inhabited by penguins.
c. once located closer to the equator.
d. once beneath the ocean.

8. Based on the glacial deposits he observed, Wegener argued that
a. glaciers form near the equator.
b. Earth's axis of rotation had changed in the past.
C. landmasses drifted away from the South Pole.
d. Glossopteris could not survive hot weather.

9. Most scientists at the time rejected Wegener's hypothesis of continental drift because he
a. had collected little evidence to support his hypothesis.
b. would not state his hypothesis publicly.
c. insisted that Earth's axis of rotation had changed.
d. couldn't explain how or why the continents moved.

1 answer

  1. Early mapmakers thought continents might have moved based on their observations of
    c. matching coastlines

  2. Pangaea was an ancient supercontinent made up of
    d. all of Earth's continents.

  3. To support his hypothesis of continental drift, Alfred Wegener did NOT use
    b. magnetic field data

  4. Fossil evidence that supported Wegener's idea of continental drift included
    a. land-dwelling animals.

  5. Fossils of aquatic reptiles found in freshwater rocks suggested to Wegener that these reptiles
    b. probably did not cross the oceans.

  6. Based on observations of fossils of Glossopteris, Wegener concluded that
    b. continental rocks containing these fossils had once been joined.

  7. Coal beds in Antarctica indicated to Wegener that this continent was
    c. once located closer to the equator.

  8. Based on the glacial deposits he observed, Wegener argued that
    c. landmasses drifted away from the South Pole.

  9. Most scientists at the time rejected Wegener's hypothesis of continental drift because he
    d. couldn't explain how or why the continents moved.