I will mark brainliest answer who can answer this all questions.
1. What is the universe made of?
2. How did life begin?
3. Are we alone in the universe?
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I will mark brainliest answer who can answer this all questions.
1. What is the universe made of?
2. How did life begin?
3. Are we alone in the universe?
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Answer:
1. Composition. The universe is composed almost completely of dark energy, dark matter, and ordinary matter.
2.something similar to RNA, was the first molecule on Earth to self-replicate and begin the process of evolution that led to more advanced forms of life, including human beings.
3. Probably not. To assumes anyone beyond our solar system wants to make contact. Alien beings might lay low to avoid attracting interstellar bullies. They could lack the technology to greet us, or we may not yet have the means to hear them calling (or understand the message). Anyone out there could be so far away that we haven’t received their signal. It’s possible that this big blue marble is an astronomical backwater no one else finds interesting enough to bother checking out. It’s also conceivable that other civilizations have already come and gone, wiped out by some cosmic event, catastrophes of their own making, or simply the passing of time. In that case, perhaps we’ll one day find evidence of their existence.