A modern geologic theory that considers Earth's lithosphere to be made up of moving plates is known as
a. the principle of uniformity.
b. the law of superposition.
c. the Moho concept.
d. plate tectonics.
d
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A solution of what sugar is used for intravenous feeding in a hospital?
a. Sucrose b. Fructose c. Glucose d. Lactose
The Mercalli scale was used to measure
a. tornados. b. earthquakes. c. tsunamis. d. hurricanes.
The H-R diagram can plot
A) apparent magnitude versus spectral classes. B) radius versus luminosity. C) radius versus mass. D) temperature versus luminosity. E) temperature versus mass.
The intensity of sunlight falling on the earth is about 1.4 kW/m2 (before any gets absorbed by our atmosphere). At what rate does the sun emit light energy? (The earth-sun distance = 1.5 × 108 km and the earth's radius = 6.4 × 103 km.)
A) 4.0 × 1026 W B) 3.2 × 1022 W C) 7.2 × 1014 W D) 7.6 × 108 W