Which of the following contains a modern continental rift?
A. eastern Europe
B. eastern North America
C. eastern Pacific Ocean
D. East Timor
E. eastern Africa
Answer: E
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Suppose a conventional jet airliner is at an altitude of 10 km, the outside air pressure is 250 hPa, and the outside temperature is -60°C. What would be the air temperature inside the jet if the outside air is brought inside and compressed to a 1000 hPa pressure? (Assume that 1000 hPa pressure is equivalent to 0 m altitude.)
A. 60°C B. 40°C C. 0°C D. -60°C
Which statement is true about the composition of minerals?
A) Minerals are composed of elements. B) All minerals are compounds. C) There are no minerals composed of only one element. D) The chemical composition of a mineral does not determine the physical properties of the mineral.
What desert landform is visible here?
A) Inselberg B) Normal fault C) Playa lake D) Bajada
Mid-ocean ridges are elevated above the seafloor. The elevation of the seafloor
A. decreases away from the mid-ocean ridge because of the cooling and contraction of the rocks. B. decreases away from the mid-ocean ridge because of the expansion of the rocks. C. increases away from the mid-ocean ridge because of the expansion of the rocks. D. increases away from the mid-ocean ridge because of the cooling and contraction of the rocks.