What is the latest supercontinent?
a. Supercontinent Laramide
b. Supercontinent Pannotia
c. Supercontinent Rodinia
d. Supercontinent Pangaea
Answer: d. Supercontinent Pangaea
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An eastern boundary current is generally narrow and swift.
a. true b. false
Which of the following contains only metals?
A) Ag, As, Ba, Ca B) Ag, Au, Pb, Rb C) As, Ge, Si, Te D) none of these
Racist laws divided benches, drinking fountains, bathrooms, and schools in South Africa until
A) 1948. B) 1974. C) 1988. D) 1994. E) 2004.
What does this welded texture indicate about the formation of this rock?
A. It formed from an explosive pyroclastic eruption. B. The magma formed some crystals before rising closer to the surface and solidifying. C. The rock solidified at great depth. D. The magma had abundant dissolved gas.