Read the paragraph and answer the question.
Most people never have the opportunity to view a total solar eclipse. However, many of us will be able to see a partial solar eclipse. As the earth rotates beneath the sun and the moon, the spot darkened by the moon's shadow covers an area of approximately 170 miles. Any area of the earth rotating into this shadow will view a total solar eclipse.
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Select the correct answer.
What is the main idea of this paragraph?