The sentence that states the main idea of a text is that which summarizes the key point. Given this understanding, the sentence that states the main idea of paragraph eight is;
- B. The world is preparing for the dangerous effects of space weather.
As seen in the text, the author stresses the need for us to prepare for space weather just as we take measures for the earth's weather too.
The author showed the efforts of businesses and governments in making sure that this effort is successful.
So, sentence B sums up the main idea of the paragraph.
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