Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Credit: www.whatchristianswanttoknow.com. Why is life possible on Earth? Answer. One possibility is that the Sun formed in a part of the Milky Way Galaxy that had an abundance of metals and then migrated to its current position. Thick enough atmosphere to reflected back harmful solar radiation, regulate surface temperatures and protects us from outer space . The emergence and evolution of early life is a field in which science will have to make further progress, as the clues are still incomplete. Q. According to simulations, without the two biggest gas giants in the Solar System, Jupiter, and Saturn, life may not have been able to gain a foothold on Earth. 7. What is the Minimum SAT Score for Harvard? According to relegion, God created life. Question Date: 2019-02-01: Answer 1: Life is possible on Earth because Earth has the particular characteristics and substances that are required by all known life forms. Metal-rich stars are more likely to have planets orbiting around them. questions? It is the only planet we know of that can support life. If this was the case, life on Earth would not be possible. Both plants and animals require water for survival. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); This site uses Akismet to reduce spam. In other words, its gravitational pull has prevented the earth from wobbling on its axis , causing dramatic climate shifts. environments that we once considered to be "extremely hostile to Now, whether there is life there or not, that we aren't sure of. 120 seconds per short answer item. Fastt Math is proven effective for struggling students. Humans for example, need to breathe in oxygen and can survive in temperatures that arent extreme hot or cold. Le russe (en russe : , rsskij zk 9) est une langue appartenant au groupe des langues slaves orientales de la famille des langues indo-europennes, auquel appartiennent aussi l' ukrainien et le bilorusse. The entire journey takes one hundred hours. The distance to the sun may not be so ideal then, and the Earth may experience a runaway greenhouse effect, like Venus, extinguishing all life. For example, these places may have a different atmosphere so there wouldnt be the right amount of oxygen for us to breathe. Inter-disciplinary perspectives. The consent submitted will only be used for data processing originating from this website. A GRB within a few parsecs, with its energy directed towards Earth, will mostly damage life by raising the UV levels; during the burst itself and for a few years thereafter.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'ourplnt_com-large-mobile-banner-1','ezslot_2',194,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-large-mobile-banner-1-0'); Some types of galaxies are too compact (stars so close to each other). That would have been the end of our Sun, staying just short of . Scientifically, there are many other theories that are supported through experiments. Waters extensive capability to dissolve a variety of molecules has earned it the designation of universal solvent, and it is this ability that makes water such an invaluable life-sustaining force. Iraq, officially the Republic of Iraq, is a country in Western Asia.It is bordered by Turkey to the north, Iran to the east, the Persian Gulf and Kuwait to the southeast, Saudi Arabia to the south, Jordan to the southwest and Syria to the west.The capital and largest city is Baghdad.Iraq is home to diverse ethnic groups including Iraqi Arabs, Kurds, Turkmens, Assyrians, Armenians, Yazidis . Earth is a blue marble in space: the water gives our planet its blue color: about 71 percent of the Earths surface is covered with oceans and lakes. Another reason is that the sun is a medium sized yellow star, stable and long lived. 8f5 2eb 3f9 b69 1ef fc4 25a ae4 e3d 542 1ee 0b5 3ec 3ac 3d9 40a f7d 6a7 818 ce9 0e6 298 3c5 89c d2c 94a 24f ebb 170 ae0 5f2 e21 045 35c 168 e63 fff 67d 202 d28 758 94a 260 a31 d12 890 1bf 499 85c 22c 390 48a 479 43c 490 2ec 94a f5c aa2 e59 9a8 d1b 14b 2aa 389 20c 604 ed4 479 b83 3dd 74e f33 429 977 38e 19f 086 819 50c d31 4f0 0b1 8ee 1df a55 3f7 7c1 169 2c7 3b7 b0c 1e9 9a0 0f5 452 cea ca9 b76 841. In general, the larger a star, the shorter its life.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'ourplnt_com-banner-1','ezslot_7',198,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-banner-1-0'); All but the most massive stars live for billions of years. OR Can a star contain millions and millions of earths in it? . You want that big sort of ocean reservoir at the surface which happens when youre kind of in the middle. Statement 2: The energy required for the sustenance of life on earth is obtained by photosynthesis. In five billion years, the sun will run out of fuel and expand, most likely engulfing the Earth. Perhaps only simple organisms (if any) could have evolved in such an extreme environment. Biological Roles of Water: Why is water necessary for life. Perhaps the biodiversity would be diminished, if life evolved at all. would have halted there itself, balanced by thermal pressure. There arent nearly as many life forms that live in really cold temperatures such as at the poles or in extremely hot environments such as inside volcanoes. So, the completely accurate answer is, "Not that we know of, but A more immediate threat is a global warming apocalypse. Do such conditions generally exist? Learn how your comment data is processed. The gamma-ray bursts are extremely dangerous events. Answer (1 of 217): Earth is unique in the Solar System as being the only planet which is able to support life in all its forms: from basic living micro-organisms to highly sophisticated and intelligent human beings. Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. 8.What in your opinion should be the conditions necessary for the kind of life we know to exist on other heavenly bodies? The Goldilocks principle is named by analogy to the childrens story, The Three Bears, in which a little girl named Goldilocks tastes three different bowls of porridge, and she finds that she prefers porridge that is neither too hot nor too cold but has just the right temperature. One of the main requirements is a liquid where molecules can react. One factor that affects the temperature of a planet's atmosphere is its distance from the star it orbits around - it's . Related: Habitable Zone explained by astrophysicist. We do know that life as we understand it requires very special conditions to exist. I have many theroies about why life is currently on Earth. History of Life on Earth Life on Earth has existed for a relatively long time when compared to the age of the Earth. This could create some very extreme seasons and weather conditions. Why is life possible on Earth short? How is life possible in Earth? There are many theories about how life started on Earth. Beacuase, Life is only found on Earth for a couple of reasons.We know that life requires sun, moderate temperatures, water, and certain chemical elements like carbon, oxygen, and nitrogen. The atmosphere protects the Earth from the solar radiation. What makes the Earth habitable? The process of formation of the Sun is the first of a series of events, that eventually made life possible on Earth. The same goes for the existence of the moon. They would basically boil and steam away. life" on Earth, life somehow manages to survive. Earth is at an adequate distance from the sun which gives us heat that is neither too hot nor too cold. A SAT score of 1580 is needed for admission in Harvard - the score breakup for Reading and Writing is 720-780 and for Math, it is 740-800. Could be the possible measure human can do to avoid or block the asteroid from hitting the Earth. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'ourplnt_com-box-2','ezslot_3',619,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-box-2-0');Earth, our blue planet is a tiny oasis in a vast, cold, and dark space. Carbon helps to regulate the Earth's temperature, makes all life possible, is a key ingredient in the food that sustains us, and provides a major source of the energy to fuel our global economy. Western philosophers since the time of Descartes and Locke have struggled to comprehend the nature of consciousness and how it fits into a larger picture of the world. If we get 180 degrees, then our answer for angle . It would lose all the oceans. Cells are made up of around 70-95% water. These may be very simple organisms such as bacteria or even more complex life such as plants and animals. One reason is that Earth is the only planet in our solar system with the right conditions for life. It all has to do with pressure and temperature for water. Without water, most probably life couldnt emerge on Earth. It seems possible that the origin of life on the Earth's surface could have been first prevented by an enormous flux of impacting comets and asteroids, then a much less intense rain of comets may have deposited the very materials that allowed life to form some 3.5 3.8 billion years ago. Also an animal lover! This makes the ocean the principal life habitat on Earth. it provides heat 9% argon. The atmosphere on Mars is made up of mainly carbon dioxide. Solar energy also drives the Earth's climate, and slight variations in solar radiance could offset (or increase) global warming. The main reasons why life is possible on Earth are. includes questions submitted by YOU and answered by the museum's astronaut Dr. David Wolf! Our planet might be out of the Goldilocks Zone. Without light the Earth would be frozen. I am a software developer, a former road racing cyclist, and a science enthusiast. If humans last that long, Earth would be . One thing is "destroyed" (i.e., totally fragmented or consumed by . Our knowledge of galaxy types and their distribution suggests that life as we know it can only exist in about 10% of all galaxies.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'ourplnt_com-medrectangle-4','ezslot_1',621,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-medrectangle-4-0'); The main reason is extremely energetic explosions that have been observed in distant galaxies, called Gamma-ray bursts. What is the closest habitable planet to Earth? Liquid water, something found in abundance on Earth, is the last needed factor. speak with any precision about "life as we DON'T know it", other Most life on earth lives in warm to moderate temperatures. I also take care of stray cats & dogs. Our Sun is the most important source of energy for life on Earth. There is even the possibility that life formed on Mars before it formed on Earth and that Mars seeded life on Earth. Its estimated that 1 in 20 stars are like our sun. Once the student has demonstrated a command of basic mathematical . Why Is Life Possible On Earth Short Answer. Observational data suggest that the Earth-like planets likely formed from circumstellar disks with metallicities Z > 0.1 Z_Sun (study).if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[336,280],'ourplnt_com-large-leaderboard-2','ezslot_4',600,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-large-leaderboard-2-0'); Furthermore, all life forms require certain core chemical elements needed for biochemical functioning. orbit of our Sun around the galactic center, Most metals are produced in nuclear reactions in the cores of massive stars and distributed through supernovae explosions into the interstellar medium, even less active compared to its siblings, prone to blasting their planets with bursts of radiation, The Sun is less active than sibling stars, study shows, Habitable Zone explained by astrophysicist, similar photos had already been taken as early as 1967, magnetosphere of Mars collapsed around 3.7 billion years ago, Earths magnetic field is changing 10 times faster than previously thought, Why Pluto is not a planet anymore? The Earth is in the middle of which is called the habitable zone or Goldilocks zone. Mars does have an atmosphere, but it is about 100 times thinner than Earth's atmosphere and it has very little oxygen. There are many reasons why this happens. Our Solar System is located in one of the spiral arms of the Milky Way (called the Orion Arm) which lies about two-thirds of the way out from the center of the Galaxy.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'ourplnt_com-leader-3','ezslot_8',195,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-leader-3-0'); The location of the Solar System is a safe harbor, compared to many other places in the galaxy. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. . Scientifically, there are Why do we believe that life is possible on planets where there is oxygen? Life elsewhere would be specifically adapted to their own conditions. The unique properties of water make life possible on Earth. Solar energy is essential to agriculturecultivating land producing crops and raising livestock. It would have meant that much larger portions of each hemisphere would be subjected to continuous sun in summer, followed by a long, cold and dark winter. Energy from the Sun makes life on Earth possible. Seventy percent of the surface is covered by oceans where photosynthesis takes place. Life existed on Earth relatively quickly. We all have questions about space. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen, and . 9.How big are the stars?
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