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Which statement best explains douglass's purpose

Which of these websites would be least likely to provide credible reference material for researching stress?

Determine the meaning of the word *propel* using the context clues in the sentence. wind power is the ability to capture the wind in a way to *propel* the blades of wind turbines. a) to move slowly b) to urge onward c) to stop from moving d) to drive, or cause to move, forward