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Is Humanity Alone in the Universe? Unlikely. The debates about whether sentient life is a unique phenomenon in our universe have lasted for decades. From dogmatic beliefs about humanity having been created by a deity, public opinion has mostly moved to a more flexible, diverse outlook Since it became known that there is life out there, experts have mostly debated about the possibility of an intelligent, self-conscious species existing somewhere in space. Some believe if alien life does exist, it is necessarily better developed than humanity. It is supposed to possess a progressive culture, faster-than-light spaceflight secrets, and advanced technologies and weapons. The thought about humanity being inferior to alien species provokes fear, which has been manifested in popular culture for the last hundred years. Others think that even if there is sentient life in space, it does not necessarily outstrip the human race in terms of development. Anyways, what matters are the talks about the possibility of intelligent extraterrestrial life moved from "whether" to "how common?" To prove this thesis, let us take a look at the arguments its proponents come forward with. According to one recent study, chances that we are not alone in the universe are significant approximately one in 10 billion trillion chances. It may look like a ridiculously small possibility, but let us not forget about the number of stars in one galaxy that we live in, or about the number of galaxies in our local galaxy cluster, or about the number of galaxy clusters that exist in the universe. In fact, considering the enormous scales of the world we live in, 10 billion trillion to one does not look insignificant anymore. Indeed, we tend to underestimate such seemingly small probabilities, completely forgetting about the fact that in the scales of universe, even one out of 10 billion trillion means an unimaginably huge number of chances. This alone could serve as valid proof for the claim that humanity is not alone in the universe, but there is more to it. So far, humanity has no empirical evidence of intelligent alien life existing somewhere in the universe. However, there is strong mathematical proof of such a probability, and there is the experience and knowledge of NASA astronomers who believe life outside Earth exists. Our universe is an incredibly large place. Earth is a tiny hydrogen molecule in the vast ocean of space-and it would be extremely arrogant to think that it is the only place where the miracle of life could have emerged. Source: https://academichelp. net/ "This alone could serve as valid proof for the claim that humanity is not alone in the universe, *but* there is more to it." The underlined word belongs to .... A. complex sentence B. compound sentence C. conjunction of contrast D. conjunction of cause E. conjuction of effect

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