On 09 March 1989, a powerful explosion on the Sun, known as a ________, hit the Earth at more than 1 million miles an hour and knocked out the power grid in the Province of Quebec, Canada.

A. coronal convergence
B. spectral sunspots
C. spectral mass evacuation
D. coronal mass ejection


Answer: D

Environmental & Atmospheric Sciences

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a. True b. False

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Indicate whether the statement is true or false

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