How do electromagnets differ from regular magnets?

a) they can be turned on or off

b) Their polarity can be reversed

c) Their strength can be changed

d) All of the above

Where does surface water collect if it does not flow to the ocean? A. Glaciers B. Wetlands C. Subduction Zones D. Alluvial Fans

If someone asks you "What is it like to stand on top of that mountain?" that person is asking you a question about location, environmental geography, human-environmental interaction or place

Which of the following is FALSE? A) Venus has a density of 5.2 grams per cubic centimeterB) All Terrestrial planets have densities much higher than the density of waterC) The density of Jupiter is 1.

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Why do the united States and canada have strong economies

1. When governments seek a favorable trade balance, they want A to raise taxes on exports B imports to equal exports C to export more than they import D to import more than they export

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3) Which of the following may move and cause an earthquake to occur? A: Asthenosphere B: Lithosphere C: Plate D: Mantle

What statement best describes the relationship between power and authority? A. Authority is a type of power used only in democracies. B. Authority is the ability to use power legitimately. C.

The Jesuits were not part of the Catholic Church and they supported Protestant reform. True False