Which of the following demonstrates the correct order of the phases involved in a lightning stroke?
A) step leaders, return stroke, separation of charges, flow of negative charge into ground, dart leader
B) dart leader, charge separation, flow of negative charge into ground, step leaders, return stroke
C) charge separation, dart leader, step leaders, flow of negative charge into ground, return stroke
D) charge separation, step leaders, return stroke, flow of negative charge into ground, dart leader
D
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Paleomagnetic data plotted on a map suggested that the magnetic pole had moved over time; this
phenomenon was called ____________________. Fill in the blank(s) with the appropriate word(s).
Hot spots have active volcanoes above them on Earth's surface and moving plates carry the volcanoes away from their hot-spot source.
Answer the following statement true (T) or false (F)
Standing waves may be caused by ________
A) a storm surge B) destructive interference C) wave diffraction D) wave reflection E) wave refraction
Which of the following scenarios best illustrates the concept of eminent domain?
A) The United States government pays subsidies to the fossil fuel industry despite the negative environmental impacts of fossil fuel use. B) The conversion of landscapes is an inescapable effect of our reliance on fossil fuels. C) The transportation sector has shifted away from using coal as an energy source and now relies almost entirely on oil. D) Residents of the Chicago area who were in the proposed path of Interstate 355 were forced to sell their homes and move when the interstate was built. E) Settlers in the Oklahoma Territory were allowed to claim land during the land rush.