Our understanding of seafloor topography dates to
A) the last decade because of advances in satellite telemetry.
B) Charles Lyell's popularization of the principle of uniformitarianism.
C) Alfred Wegener's hypothesis of continental drift.
D) the first Landsat mission in 1972.
E) the mid-20th century and the development of SONAR.
Question 2
Which of the following is not one of the major groups of terrestrial vegetation biogeographers often designate?
A) grassland
B) forest
C) savanna
D) desert
E) phytoplankton
Topography of the Moon
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Chalk cliffs 90 meters (300 feet) high along the shore in Dover, England, were once seafloor