Warm air rises. This is an example of energy transfer by
A) convection.
B) conduction.
C) radiation.
Answer: A
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What happens to the surface area of exposed rock if a rock is fractured?
A) There are more pieces, but the surface area does not change. B) The surface area does not change because the volume does not change. C) The surface area increases as the rock is fractured. D) The surface area decreases as the rock is fractured.
What evidence led scientists to believe that waves travel at a greater velocity inside Earth?
A) Studies of earthquake signals via sensors located deep inside drill holes prove it. B) Refraction of energy waves is most efficient at shallower depths. C) Refraction of energy waves is most efficient along short paths. D) Average velocity is faster when the seismograph is farther from the focus of the earthquake.
Of the following regions, this one has the lowest record-high temperatures, on average,
A) Southwest. B) California. C) Great Plains. D) New England. E) the South.
________ is the total quantity of sediment carried by a river
Fill in the blank(s) with correct word