Heres how it works. It is the only planet which supports life. Gravity pulled many of these pieces together to form the moon, which took up orbit around its creator. However, the planet was still too hot to sustain life. Short Paragraph on the Solar System and Planets - IMP WORLD Before uploading and sharing your knowledge on this site, please read the following pages: 1. It takes the Earth 365 days, 6 hours, and 9 minutes to complete one rotation around the Sun. Hutton went on to make the analogy between the circulation of the blood, discovered by Harvey, and the circulation of the nutrient elements of the Earth and of the way that sunlight distills water from the oceans so that it may later fall as rain and so refresh the earth. For instance, some lists might include movement as a defining characteristic, while others might specify that living things carry their genetic information in the form of DNA. This is the air that living things breathe. Do we know for sure that we are the only conscious organism? In this model, researchers have shown how smaller, pebble-sized objects could have fused together to build giant planets up to 1000 times faster than in other explanations. We must strive to save the planet now before it is too late. 3 Ways to Save the Planet | The Nature Conservancy The magma which is always flowing if or when comes to a stop, it bursts out of the earths crust due to the high amount of pressure generated by the gases present in the magma. Image Guidelines 4. All solar systems begin in the same way from Nebulas. Essay On Earth - 10 Lines, Short And Long Essay For Kids Years of evolution have brought us to today, where we can study and understand not only the Earth but also other planets and galaxies. The Earth is the only planet in our Solar System which could sustain life. However, most biologists (along with everyone else) would consider a mule, pictured above, to be alive. The fifth largest planet of the solar system, it has an equatorial circumference of 40,076 km (24,902 mi). Approximately 4.6 billion years ago, our solar system was just a cloud of dust and gas known as a solar nebula. Reproduction can be either. Moreover, all of the properties of life we have discussed are characteristic of life on earth. However, this part of the Earth harbours all known life in the Universe. Direct link to donalddas16's post Yes, DNA is of course a m, Posted 7 years ago. Be clear about the direction of the essay in the beginning to ensure consistency. Take a minute to check out all the enhancements! For the full article, see, Development of Earths structure and composition, Spotting a Supercontinent: How Pangea Was Discovered, 36 Questions from Britannicas Most Popular Science Quizzes. Planet Earth has air for us to breathe, water that we can drink, and food to sustain the life forms. We are the children of Mother Earth, and it is our duty to save our Earth. It has one natural satellite, the Moon. Microbiology with Diseases by Taxonomy Chapter 10 Answers, Selina Concise Mathematics Class 6 ICSE Solutions Chapter 13 Unitary Method, Essay on Effects of Global Warming for Kids, Children and Students, 10 Lines on My Favourite Teacher in English, Women Empowerment Speech | Best Speech on Womens Empowerment in English for Students, Paragraph About Football Check Samples for Various Word Limits, Technology: Short Essay on Advantages and Disadvantages of Technology. The origin of life on Earth stands as one of the great mysteries of science. A cosmic magnifying glass: What is gravitational lensing? Although nonliving things may show some of these characteristic traits, only living things show, Living things are highly organized, meaning they contain specialized, coordinated parts. Earth is a planet of the solar system. The [] This process, called fertilization, is illustrated in the image at far right. These differences in how sunlight hits different parts of Earth cause the seasons. Viruses can hijack our cell's DNA to program it to make more copies of the virus. They also help in keeping the monsoon systems going. So far no form of life has been discovered on any other planet or satellite. Fomalhaut b, an exoplanet with a 2,000-year orbit around its star, could serve as an example of a world formed through disk instability, though the planet could also have been ejected due to interactions with its neighbors. Due to many of mans activities there has been a continuous degradation of the Earth, and its resources like air, land and water. Learn about the basic properties of life as well as ongoing debates about the definition of life. Various answers have been proposed, all of which remain unverified. A new, third level of content, designed specially to meet the advanced needs of the sophisticated scholar. For instance, a mule, the offspring of a female horse and a male donkey, is unable to reproduce. Online Preschool is the Only Way Your Child's Learning Can Continue This Year, Don't Wait Any Longer - Get Started! The 70 % of the water which is found on the Earth is also divided into 5 major oceans commonly known as the Arctic, Antarctic, Indian, Atlantic and Pacific Ocean. All living organisms are made up of one or more. If there were no sunshine, air, water and vegetation on the planet, there would be no life on it. The flow of the mantle beneath Earth's crust causes plate tectonics, the movement of the large plates of rock on the planet's surface. Earth is the only planet which can sustain life on it. Most people have an intuitive understanding of what it means for something to be alive. Earth's atmosphere is the right thickness to keep the planet warm so living things like us can be there. What are the major scientific theories for how life emerged? Its only natural satellite, the Moon, orbits the planet . Uploader Agreement. In 1953, UChicago researchers published a landmark paper in the Journal of Biological Chemistry that marked the discovery of the pro-chirality concept, which pervades modern chemistry and biology. Time on Earth We will first start with an introduction, followed by the subheads. The Earths Crust is known as Lithosphere and means that it consists of a lot of rocks which may be characteristic in their features and composition. This artistic visualization shows Earth today (right) vs Earth 4.5 billion years ago (left). Many of mans activities have caused disturbance to the Earth and its environment. Many natural systems that sustain life on Earth have been affected in the process. Covering a story? Earth - Simple English Wikipedia, the free encyclopedia The life of almost life forms is becoming difficult because of natural disturbances and destruction. The Earth has one natural Satellite called as the Moon. But the core accretion model isn't the only explanation for how planets might come to be. Plastics, for instance, are a source of major environmental degradation. There is no other alternative planet where life is possible other than Earth. I will use the word LIFE to describe all forms and types of life on earth. Similarly, a fire can grow, reproduce by creating new fires, and respond to stimuli and can arguably even be said to metabolize. However, fire is not organized, does not maintain homeostasis, and lacks the genetic information required for evolution. Accessible across all of today's devices: phones, tablets, and desktops. The Centre of the Earth is known as the Inner Core (1300 km in thickness) and is very hot with the temperature of about 4800 C. Earth takes 365.25 days to complete one revolution around the Sun. Our Home Planet MORE Overview In Depth By the Numbers Exploration Galleries Our home planet is the third planet from the Sun, and the only place we know of so far that's inhabited by living things. This usually occurs in that part of the crust which is slightly weak or thin compared to the surrounding land therefore, easily penetrable. Direct link to William H's post It's not exactly the same, Posted 7 years ago. According to exoplanetary astronomer Paul Wilson, if disk instability dominates the formation of planets, it should produce a wide number of worlds at large orders. We must therefore save the Earth. Believed to be about 4.56 billion years old, it is some 149,600,000 km (92,960,000 mi) from the Sun. It is surrounded by the Outer Core (2170 km in thickness) which has very hot magma or lava in its molten state with the temperature of 3900 C. Though viruses themselves contain no DNA and are technically not alive, they can re-engineer our cells to help them proliferate. Still others might emphasize that life is carbon-based. But how planets like Earth form still remains a subject of great debate. Conserve energy, both fuel and electricity. You have entered an incorrect email address! Mars Short Stories - The Write Stuff | NASA In observing exoplanets, scientists think that this core accretion model fits as the dominant formation process. Earth is the third planet from the Sun and the only place known in the universe where life has originated and found habitability.Earth is a water world, the only one in the Solar System to sustain liquid surface water. A flight engineer receives 3D geometric models from the surface systems and uploads the models into a virtual reality metaverse so anyone back on Earth can explore Mars. The water bodies are home to aquatic animals such as fishes of different species and mammals, crustaceans, reptiles and more. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. The Earth is the only planet so far which is known to have life on it and therefore, has a very complex atmosphere. Life - Life on Earth | Britannica This, in turn, supported the evolution of life on Earth. Earth, Third planet in distance outward from the Sun. Image released on July 30, 2014. It has no atmosphere, and it doesn't have any moons. Future discoveries may call for revisions and extensions of the definition of life. Short Paragraph on Planet Earth - Study Today Air pollution, deforestation, soil erosion and water pollution are some of the environmental problems confronting us. Deforestation is another major issue that has contributed to environmental damage. Revolution is a phenomenon which is responsible for the different seasons which are observed on the Earth, for example, the major seasons like the Winter and the Summer Seasons. Scientists believe Earth and its moon formed around the same time as the rest of the solar system. A similar point is illustrated in this amusing story: a group of scientists had, after much debate, decided that ability to reproduce was the key property of life. Mans activities, driven by greed and selfishness, have caused degradation of the Earth, and its resources like air and water. Save Earth Essay for Students in English - BYJU'S For example, we can avoid using plastic water bottles. FREE guides and worksheets coming your way on whatsapp. In those simulations, the process takes several million years, which is longer than light gases were available in the early solar system. The axis is an imaginary line that runs through Earths center from the North Pole to the South Pole. For example, the Himalayas and the Rocky mountain ranges. Excessive vehicular traffic has led to severe air pollution. Subsequently, the topography and the organisms emerged. Choose a language from the menu above to view a computer-translated version of this page. Paragraph on Save Earth 100, 150, 200, 250 to 300 Words for Kids A Food System to Heal the Planet. Visit our corporate site. The Earth must be Saved for our Own Survival. Earth Making their foundations strong helps to develop their skills and focus on improving the content of their essays. Here are three ways we need to up-end "business as usual" and act boldly to advance conservation. By showing that amino acids could survive a fiery comet collision with Earth, the team bolstered the idea that lifes raw materials came from space. It is the fifth largest planet in our Solar System. How can we tell that one thing is alive and another is not? Erosion has created features such as the Grand Canyon. This article was updated on Jan. 5, 2022 by Space.com senior writer Chelsea Gohd. It has rivers, valleys, mountains, hills, forests, oceans, plains and beaches. For example, there are large ice sheets in the Arctic and Antarctic regions. The mule looks similar to a donkey and is clearly a living animal, despite the fact that it cannot reproduce. In size, it ranks fifth and it is the third nearest planet to the sun. She has a Bachelors degree in English and Astrophysics from Agnes Scott college and served as an intern at Sky & Telescope magazine. It is not too hot, like Venus, and not too cold, like Neptune. Updates? The team suggested micrometeorites as the materials likely source. Its diameter is about 8,000 miles. Evolution is a result of life, not a cause. While the water of the seas and the oceans is saline, and is not fit for consumption, the water of rivers and streams and lakes can be consumed. All About Earth | NASA Space Place - NASA Science for Kids whatsapp. Terms of Service 7. During this time the northern half of the planet, called the Northern Hemisphere, gets more sunlight than the southern half, or the Southern Hemisphere. 500+ Words Essay on Save Earth Taking care of our Earth is no longer an option - it is a necessity. Shape: It is a sphere with a bulge around the equator. This has caused certain species of wildlife to become extinct, and many species to be threatened and vulnerable. Below is the article summary. The Earth rotates on its axis, which causes days and nights. Earths atmosphere goes up to a few hundred miles above the surface. God created earth with all of the right conditions for life to survive and thrive as He filled the land and seas with all kinds of organisms. The Earth came into existence millions of years ago, and there have been billions of animals and humans that have walked the same Earth as we do now. Direct link to City Face's post Viruses can hijack our ce, Posted 4 years ago. For instance, virusestiny protein and nucleic acid structures that can only reproduce inside host cellshave many of the properties of life. The Earth is unique. The rotation of the Earth is responsible for the changes in weather such as warming up during daytime and cooling down at night. For example, the Northern Hemisphere has its warmest season, summer, when it is tipped closer to the Sun. One finding that has helped to strengthen core accretion's legitimacy as an explanation for planet formation is the 2005 discovery of a giant planet with a massive core orbiting the sun-like star HD 149026. Steve Koppes. Left: image of a Salmonella bacterium dividing into two bacteria. The layer of gases surrounding Earth is called the atmosphere. It is about 4,300 miles (6,900 kilometers) across. Moreover, all of the properties of life we have discussed are characteristic of life on earth. For instance, in the solar system, we cannot live on a planet like Venus which is very hot, nor can we survive on Neptune, a very cold planet. (Image credit: Painting copyright William K. Hartmann, Planetary Science Institute, Tucson). Earth also has the perfect range of temperatures for life. It is indeed one of a kind. The earth is a unique planet. However, due to the overuse and wastage of resources, the planet is in danger, and global warming is increasing. Most other water is retained in Earth's large polar sheets of ice, covering ocean and land, dwarfing . Due to many wanton and indiscriminate activities of man driven by greed, selfishness and intolerance, the Earth and its environment have been adversely affected. "They showed that the leftover pebbles from this formation process, which previously were thought to be unimportant, could actually be a huge solution to the planet-forming problem," Levison said. Indeed, NASA's working definition that "life is a self-sustaining system capable of Darwinian evolution" opens the door to many more possibilities than the . Paragraph on "Life on other Planets" complete paragraph for Class 9 There was not much oxygen or water to speak off as we now know it. It is about 40km in thickness and is only 1% of the Earths mass. What are the ingredients of life on Earth? The Earth formed about 4.5 billion years ago. Direct link to smhpoppy's post In the "Is this the defin, Posted 3 years ago. From what we know of other planets it is however established that life supporting conditions do not exist on any other planet in our universe . It is mostly nitrogen, and it has plenty of oxygen for us to breathe. This small planet spins around slowly compared to Earth, so one day lasts a long time. Like carbon and nitrogen, water is much more likely to become a part of solid objects that formed at a greater distance from the sun. Earth summary | Britannica If you're seeing this message, it means we're having trouble loading external resources on our website. The Earth has an imaginary line which runs straight through its centre (vertically) and is called as its axis. Our planet lies in what is known as the Goldilocks zone, a region surrounding a star that is close enough for liquid water to exist on a planet's surface, with water neither freezing nor evaporating. Direct link to Nonso Omoko's post why are viruses hard to c, Posted 7 years ago. All these planets revolves around the sun and are part of our solar system. Global warming has led to the dangerous phenomenon of climate change. Saving trees is therefore very important for our life and the life of planet Earth. The living things we saw in the introductionhumans, dogs, and treeseasily fulfill all seven criteria of life. Sunlight provides the energy source at the surface, which drives photosynthesis.