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According to the “rare Earth hypothesis,” the conditions that support life on Earth are unique, and the odds of similar conditions being found on another planet are close to zero. In contrast, the “mediocrity principle” holds that our planet, solar system, and galaxy are utterly ordinary, making it likely that life is common elsewhere.

Which is the most effective topic sentence for the paragraph?

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shivjimishraVT

The most effective topic sentence for the paragraph is "There are two opposing viewpoints on the possibility of life existing on other planets."

What is the context of this excerpt?

The context of this excerpt illustrates the conditions that support life on Earth which are found nowhere else. It also depicts an understanding of the mediocrity principle. Overall, it describes the two opposing viewpoints on the possibility of life existing on other planets.

The complete question is as follows:

  • Science fiction assumes that the universe bursts with life, but scientists aren't so sure.
  • Despite many decades of searching with telescopes, space probes, and planetary rovers, we have found no evidence of extraterrestrial life.
  • There are two opposing viewpoints on the possibility of life existing on other planets.
  • Have you ever looked up at the stars and wondered if anyone was out there looking back?

Therefore, the correct option for this question is C.

To learn more about Life on earth, refer to the link:

https://brainly.com/question/10715182

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