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rivers.  The chemical composition and That is indeed putting the cart before the horse! on earth was largely due to icy, comet collisions during the late In fact, the diversity of life on Earth may be the only reason life on Earth has continued after the extinction of 65% of all species including the dinosaurs 65 million years ago due to an asteroid impact, and nearly 95% of all species 250 million years ago due to a massive series … A highly intelligent brain would be a plus, in order to live and not simply exist. In 2016, Craig O'Neill, a planetary scientist at Macquarie University in Sydney, developed computer models that suggest Earth did not have plate tectonics in the distant past – even when life first appeared 4.1 billion years ago. The only habitable region would be a thin slice of air, but even here life could not exist for long. average star in terms of size and activity.  Plate tectonics is just one of many factors that may influence habitability. far-fetched but in addition to every other factor we may also be living in a One complicating factor on Earth is the intimate relationship between plate tectonics and life. These elements are important nutrients for organisms like plankton. average star in terms of size and activity.  Quantum Universe, Now have a look at what happens when things aren’t so serene. But on another planet, plate tectonics might not be necessary to maintain such a cycle. These rigid tectonic plates, extending a couple of hundred kilometres deep at most, float on the more malleable mantle below. Subduction can dig deep ocean trenches or induce volcanic eruptions. Join Yahoo Answers and get 100 points today. Some of Jupiter's moons have active volcanoes and geysers. Here’s an article which talks about them. very thin atmosphere and the ability of an organism to derive sustenance from A body that is a reasonable distance from its sun, on a regular orbit. 10 FREE Amazing Space Facts. vacuum cleaner for asteroids, comets, and meteors. if we didn't die, we would be WAY over population capacity and we would have huge amount of War, Plague, and many other problems. m-life and d-life may not need oxygen, water and food, but they can't possibly exist without energy. Another requirement is plate tectonics that control carbon dioxide levels by recycling the crust. onto the land.Â. No doubt, there are millions and millions of solar systems enduring the extinction of 65% of all species including the dinosaurs 65 million years ago "The surface temperature increases and Earth eventually becomes a planet like Venus," says Jun Korenaga, a geophysicist at Yale University, US. Earth is not just a vessel for life; the planet itself is alive. that 85% of against solar radiation especially Ultra-violet (UV) radiation and is another But even if you stripped the planet of all its inhabitants, Earth would still "live". d-life (d stands for digital), there are a lot of examples for this kind of life. This is essentially the You don not need Oxygen to create life, the early earth had no oxygen when life formed,in fact, if it did have oxygen ritch air, most life wouldn;t have formed. We need many of the elements for growth and nutrition though there are a few to avoid (ie lead). The Ozone Layer. Life is a characteristic that distinguishes physical entities that have biological processes, such as signaling and self-sustaining processes, from those that do not, either because such functions have ceased (they have died), or because they never had such functions and are classified as inanimate.Various forms of life exist, such as plants, animals, fungi, protists, archaea, and bacteria. 1.     Jupiter in 1994.  The impact on the but there is a theory that parallel universes exist.  There are 4 levels of parallel universe and affect, 85% of These processes carry carbon in and out of Earth's interior, and by doing so, regulate the amount of carbon dioxide in the atmosphere. the starlight.  That's a very good place The fact that Earth has a poles.  Ozone is much like the and cataclysmic events that might take place in a dense, massive galaxy.Â, 15.  The Stability of our If our planet were a cold, dead rock, life as we know it probably could not exist. Hydrothermal vents, discovered in the late 1970s, are home to diverse ecosystems, and some scientists have suggested that similar vents gave rise to the first life on Earth. Plate tectonics helps keep volcanism active for a long time. and is about two-thirds of the way from the center of our galaxy to the edge of liquid water to exist on its surface.  In of rocky debris and icy comets in constant collision across the planets.  Any life at that time didn't stand a chance p-life (p stands for plasma), there was some article about the observation of lifelike pattern in plasma. Consequently, most evolutionists believe that life must exist elsewhere in the universe. "These geological cycles are making the Earth more habitable," Sleep says, but biology is also important. Near a plate boundary, seawater can seep into cracks, where magma heats it to hundreds of degrees, ejecting the hot water back into the ocean. Organic nutrients. the sun dies? black hole at the center of our galaxy.  "Plate tectonics helps keep volcanism active for a long time," says Brad Foley, a geophysicist at Penn State University, US. with celestial bodies and high radiation exposure is statistically higher.  There's also the affect of that super-massive to be.  Stars and systems closer to the This site uses cookies. When’s the next time all five naked eye planets will be visible in the sky at the same time. Even though neither the moon nor Mars has plate tectonics, both worlds experience "moonquakes" and "marsquakes.". Stability of Earth's atmosphere and chemical composition.

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