Its also a stable and long-lasting star. On a biological level, waters role as a solvent helps cells transport and use substances like oxygen or nutrients. The Earth is in the middle of which is called the habitable zone or Goldilocks zone. Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. Earth is the only inner planet in our solar system that has liquid water on its surface. Earth also has the perfect range of temperatures for life. Summary: The Earth's atmosphere contains oxygen because plants continuously produce it through photosynthesis. Air transport by flights and helicopters has come into widespread use. Answer 2: Life is only found on Earth for a couple of reasons. Our Sun is the most important source of energy for life on Earth. 120 seconds per short answer item. In the absence of ultraviolet rays reaching the earth, humans would suffer from the deficiency of. Planet Earth is very special because it contains so much water in liquid form. 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. There is even the possibility that life formed on Mars before it formed on Earth and that Mars seeded life on Earth. I have many theroies about why life is currently on Earth. This makes the ocean the principal life habitat on Earth. If we were closer to the sun (but not as close as . This has a very important role in creating a process called the rock weathering feedback. For example, in Related: Habitable Zone explained by astrophysicist. Directions: Answer all three parts in a 10 minute time frame. Why is solar power becoming important? The moon is also responsible for the intertidal zones, which are vast and diverse ecosystems. . Solar energy also drives the Earth's climate, and slight variations in solar radiance could offset (or increase) global warming. seasonal change made life possible on the earth by energy from sun heats this layer; and the surface below ; causing expansion of the air. It radiates light and heat or solar energy which makes it possible for life to exist on Earth. Our atmosphere contains water vapor which helps to moderate our daily temperatures. ", organisms in the archaea kingdom Prokaryotes. If we were closer to the sun (but not as close as Venus), life may still have evolved, but very differently, likewise if we were a little further away. would have halted there itself, balanced by thermal pressure. Conditions might have been right on Mars to support life. 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. It is the operation of leveling where the difference in . Solar energy is essential to agriculturecultivating land producing crops and raising livestock. 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 factor that affects the temperature of a planet's atmosphere is its distance from the star it orbits around it's sun. The planets closest to the sun are very hot, while planets that are farther out are much colder. You want that big sort of ocean reservoir at the surface which happens when youre kind of in the middle. Manage Settings One theory that makes some sort of logical sense is that at one point, there was life on each planet, but that life on the other planets in our solar system died off leaving our planet with the most recent timeline of biological beings existing.-Brad Barron Solar energy is essential to agriculturecultivating land producing crops and raising livestock. So why not ask an astronaut? There are many reasons why life is possible on Earth. REASON ONE: ATMOSPHERE Earth has a bre. Could be the possible measure human can do to avoid or block the asteroid from hitting the Earth. People couldn't survive on these planets. 9% argon. According to relegion, God created life. It all has to do with pressure and temperature for water. There are many theories about how life started on Earth. Supplementary angles are two angles whose measures add up to 180 . 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. Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. One of the main requirements is a liquid where molecules can react. Thick enough atmosphere to reflected back harmful solar radiation, regulate surface temperatures and protects us from outer space . Related: Earths magnetic field is changing 10 times faster than previously thought. Even the strength of gravity determines the form of our bodies such as our bones and muscle strength. possibly exotic forms of life, but considering that in other Does the Moon rotate or revolve around the Earth? Life existed on Earth relatively quickly. The tilt of our planets axis would vary over time dramatically without a big moon. Inter-disciplinary perspectives. They are the brightest electromagnetic events known to occur in the Universe. Life as we know it is possible on Earth because of its distance from the sun, allowing water to exist in all three states, and in a cycle. Most life on earth lives in warm to moderate temperatures. I am a software developer, a former road racing cyclist, and a science enthusiast. If it was too close, the Earth would be too hot. Il compte plus de 280 millions de locuteurs (comme langue maternelle ou langue seconde). 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. Why Is Life Possible On Earth Short Answer. Also, no other planet has water like Earth has. . Life is possible on Earth because the planet has water on its surface and oxygen gas in its air. Related: The Sun is less active than sibling stars, study shows. Most life on earth lives in warm to moderate temperatures. The safest environments for life similar to that on Earth are the lowest-density regions in the outskirts of large galaxies like the Milky Way. This energy is the fuel for all life. 10.How much chance is there for a star to come near the other? Your email address will not be published. For living things the correct temperature is really important. Plants need sunlight to grow. 3000 North Meridian Street, Indianapolis, IN, USA 46208-4716 | phone 317-334-4000. speak with any precision about "life as we DON'T know it", other 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. According to a 2015 study, elliptical galaxies are the most habitable in the cosmos, though. happening 15,000 feet or more deep in the ice-cold waters. Our atmosphere contains water vapor which helps to moderate our daily temperatures. Why do we believe that life is possible on planets where there is oxygen? 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. Earth of course has oceans of the stuff. Answer. Water is an excellent solvent, capable of dissolving many substances. Q. The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. 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). The Sun warms the Earth and makes life possible. We'd need to go much further to escape the 'halo' of diffuse gas, old stars and globular clusters that surrounds the Milky Way's stellar disk. Answer: Life as we know it is possible on Earth because of its distance from the sun, allowing water to exist in all three states, and in a cycle. Our planet has a strong magnetic field that deflects most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation. These are not suitable for life, too. anything is possible! Without it, solar winds (charged particles that flow from the Sun) would strip away Earths oceans and atmosphere. . ocean-bottom "fumaroles", places where volcanic activity is The consent submitted will only be used for data processing originating from this website. And, if some kind of disaster doesnt intervene, our planet should continue to host life for at least another 1.75 billion years. The fact that Earth hosts not just life but intelligent life makes it doubly unique. General Science. The unique properties of water make life possible on Earth. Earth, our blue planet is a tiny oasis in a vast, cold, and dark space. Liquid water, something found in abundance on Earth, is the last needed factor. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Earth has some potentially rare attributes like the size of the Moon, plate tectonics with shallowish oceans (or deep oceans). Sanders Sides Oneshots by premium_garbage. What does the Sun do for the Earth? A more immediate threat is a global warming apocalypse. Biological Roles of Water: Why is water necessary for life. Without water, most probably life couldnt emerge on Earth. or I have my parent or guardian's consent. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. I should add that not all life is directly dependent on sunlight. Thanks to our Moon, the tilt of the axis is very stable it only varies between 22.1 and 24.5 degrees during a cycle that averages about 40,000 years. It is the right distance from the Sun, it is protected from harmful solar radiation by its . Answer (1 of 4): The earth is made up of land, water, and air . Earth has a gaseous atmosphere which is responsible for making life possible on the planet.It is the third planet from the Sun. answers as long as the answers refer to one essay question. How is life possible in Earth? [Explained], Is Earth as smooth as a billiard ball? Its estimated that 1 in 20 stars are like our sun. The Earth receives enough energy from the Sun to allow water to exist as a liquid on the surface. 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. No other planet has temperatures like Earth that are not too hot and not too cold. It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon. The earth is so for the only planet which consists of life- system. The first single-celled organisms lived in an unbreathable atmosphere, composed of gases such as methane and ammonia. It is the only planet we know of that can support life. 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. They are prone to blasting their planets with bursts of radiation.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'ourplnt_com-large-mobile-banner-2','ezslot_5',640,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-large-mobile-banner-2-0'); The Sun is also unusually metal-rich for a star of its age and type. The factors which makes life on Earth possible are: energy, carbon, water in liquid form, and various other elements such as nitrogen, phosphorus, hydrogen, and most important oxygen.. What are the conditions on Earth? One of things that the Mars Rover,Curiosity, is looking for is the presence of water now or evidence that it existed in the past on Mars. We do know that life as we understand it requires very special conditions to exist. I think life- supporting planets are common in the universe, but perhaps the amazing biodiversity we see on earth is rare, a result of randomness and luck which has given us a comfortable climate. We can't 9.How big are the stars? Spiral arms are dangerous places because massive star supernovae are concentrated there, and giant molecular clouds can perturb the Oort cloud comets leading to more comet showers in the inner Solar System. 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. Less massive (such as red dwarfs), or younger stars are often unstable. Life elsewhere would be specifically adapted to their own conditions. Our atmosphere contains water vapor which helps to moderate our daily temperatures. An astronaut on Mars would not be able to breathe the Martian air and would need a spacesuit with oxygen to work outdoors. It gets through Earth by sunlight lightenergy and thermal energy. The alien-like ecosystems found around "smokers" in the deep ocean rely on keimosynthesis, and it is thought possible(even probable) that this kind of life also exists on Jupiter's moon, Europa. It would lose all the oceans. Seventy percent of the surface is covered by oceans where photosynthesis takes place. An airplane flies due to support from air thrust. If we get 180 degrees, then our answer for angle . Both plants and animals require water for survival. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen, and . If humans last that long, Earth would be . Required fields are marked *. All living things need some sort of food, water, the right atmosphere and temperature. The entire journey takes one hundred hours. It appears that Mars did have lots of liquid water at one time. People couldnt survive on these planets. Our planet might be out of the Goldilocks Zone. Statement 1: Light is the primary source of energy on earth. But we really do not know why. It radiates light and heat or solar energy which makes it possible for life to exist on Earth. These may be very simple organisms such as bacteria or even more complex life such as plants and animals. 2 See answers Advertisement When life began, the sun's energy output was about 20% lower than today, and has been gradually increasing since then, and it is estimated that within a billion years the solar intensity will have increased by about 50% on today's value. There are many theories about how life started on Earth. Give any two features of the earth that make it a 'Unique Planet'. Earth has a protective ozone layer which protect us from the harmful rays. Why is solar power becoming important? It is located in what astronomers call the Galactic habitable zone, the region of a galaxy in which life might most likely develop.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'ourplnt_com-leader-2','ezslot_6',622,'0','0'])};__ez_fad_position('div-gpt-ad-ourplnt_com-leader-2-0'); Solar Systems location avoids the galaxys perilous inner regions. 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. We really dont know if life only exists on Earth! 7. Please consider supporting me on, on 8 Things that make Life on Earth Possible, 8 Things that make Life on Earth Possible, Fly over Mount Sharp on Mars with this NASA video, Humans walking on two legs because of exploding stars, new study says. 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. Availability of plenty of oxygen (to support larger forms of life, especially). So, the completely accurate answer is, "Not that we know of, but Do such conditions generally exist? 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 lack of a magnetic field on Mars caused a near-total loss of its atmosphere. 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. It filters the harmful ultraviolet rays of the Sun. ram664219 ram664219 28.09.2020 Social Sciences Primary School answered Why is Life Possible On Earth? Tom Barclay of NASA and his colleagues suggest that massive impacts like the one that was responsible for the formation of the moon 4.5 billion years ago would happen more frequently, and for longer time periods, without Jupiter and Saturn. In five billion years, the sun will run out of fuel and expand, most likely engulfing the Earth. On Earth, this is water. View More. The fossil record tells us that life on Earth has lasted at least 3.5 billion years (the Earth is about 4.54 billion years old), with the oldest physical traces of life dating back 3.7 billion years.And, if some kind of disaster doesn't intervene, our planet should . It helps the plants make oxygen for us and it provides food for the plants through photosynthesis. The Short Answer: Our planetary system is the only one officially called "solar system " but astronomers have discovered more than 3 200 other stars with planets orbiting them in our . Click here to get an answer to your question Why is Life Possible On Earth? They would basically boil and steam away. Water is a really important ingredient to sustain the kind of life we know on Earth. We have yet to find a planet with the same amount of liquid water as on earth but there are many new exoplanets being discovered orbiting other stars that offer this possibility. If you want an answer to these questions, reading this article will be an illuminating experience. questions? Earth has the right amount of sunlight and the right amount of water. Consider also what the climate would have been like if the earth had been tilted at say ,45`,and the implications for life. Earth is at an adequate distance from the sun which gives us heat that is neither too hot nor too cold. If this was the case, life on Earth would not be possible. Learn how your comment data is processed. Furthermore, the tides would be only about one-fourth of their current size. 9% argon. Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun . Thus, waters role as a solvent facilitates the transport of molecules like oxygen for respiration. The seasons are what drives our ocean currents, which are essential to marine (and all) life. If it is too far, then the oceans would freeze over. The main reasons why life is possible on Earth are. It makes life possible on Earth by providing us light. We must not confuse terms. The atmosphere protects the Earth from the solar radiation.
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