Heat flows outward from a fire by ________.
A. radiation from flames and hot surfaces
B. diffusion of particles from hotter to cooler areas
C. convection of hot, lightweight buoyant gases that rise
D. All of these choices are correct.
Answer: D
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Natural processes move from states of
A. lower order to higher order. B. disorganization to organization. C. imbalance to equilibrium. D. higher order to lower order.
Besides geographic fit of continents, what other evidence did Alfred Wegener study to support his theory of continental drift?
A) ?Coal and fossilized remains of tropical plants are absent in frigid Antarctica. B) ?Differences in fossils are found across separated continents. C) ?Ice core samples indicate similar CO2 measurements at both poles. D) ?The alignment of mountain ranges has a similar age, composition, and structure on both sides of the Atlantic.
The very fine-sized, clay mineral particles move downward from the E to the B-horizon of some soils. What is this process called?
What will be an ideal response?
In most places, which of the following is usually not an important in the weathering process?
A) Microscopic open spaces B) Exfoliation C) Joints D) Faults E) Solution cavities