Which of the following is correct regarding Alfred Wegener's hypothesis of continental drift?
A) He posited that 220 million years ago all the continents were joined together to form the supercontinent Pangaea.
B) It was immediately adopted because of his geological background.
C) Though it was later shown to be quackery, it nonetheless spurred innovations in scientific research.
D) It was based largely on conjecture with little basis in observable evidence.
E) Although he provided a mechanism for continental drift, he could not find evidence of it.
A
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A) Granite B) Pumice C) Gabbro D) Diorite E) Andesite
By how much is global temperature predicted to rise over the next century?
What will be an ideal response?
Maximum latitude is reached at the:
a. prime meridian b. North and South Poles c. Tropics of Capricorn and Cancer d. equator
Smaller subsidiary channels that feed main channels of rivers are called
A. drainage systems. B. drainage patterns. C. tributaries.