Scientists believe that there are certain signs of life on Earth that can be observed from space. The earth is the only planet in the solar system that is known to have free liquid water. It protects our planet from the harmful effects of solar wind and ionizing particles from space. Exploration of our own planet is nonstop. Another reason why we sustain life on Earth because of a lot of things our planet has for us. Scientist from all fields maintain a constant vigilance in studying the different aspects of our planet. Our planet's internal structure is a series of layers, 5 in all, that stretch for miles. thanks for providing such statistics. Earth's rocky crust provides a stable surface for life, unlike gas giants, such as Jupiter or Saturn. As the water heats up, it evaporates and becomes trapped by the atmosphere. Similar pictures have been taken from the surface of Mars and from the Moon as well. Which creates our magnetic field, atmosphere, and winds on the planet's surface, helping to maintain Earth's surface temperature and keeps everything on the ground. It is the hard rocky area of the planet that allows us to grow crops, holds the water on the surface, and basically walk around on. Earth, the planet in which we live on, is the only known planet to have higher life forms occupying its surface. The outer mantle is much thicker than the outer mantle which makes it much more solid. Trump turns focus to Obama after coronavirus question. As the tectonic plates keep moving, carbon is cycled and recycled within the various layers of the Earth. I am genuinely happy to read this web site posts which includes lots of useful data, The things that make up our atmosphere are Nitrogen (78%) Oxygen (20%) Carbon Dioxide (1%) and other gases such as Krypton or Argon (1%.). It is also a secondary "shield" protecting the Earth from debris from space. So basically, we have yet to even scratch the surface of what lies beyond the crust of our planet let alone the multiple layers beneath. Plate tectonics opens the mantle coat regularly and releases heat, thereby swiftly cooling the Earth’s mantle. This helps the Earth’s surface maintain the optimum temperature that would allow liquid water to be stable on its surface. This process creates carbonates, such as limestone, which settle at the bottom of the oceans and subduct into the mantle. Change ), You are commenting using your Facebook account. Thus, the carbon cycle acts as the base for sustaining life on Earth. If just one of these factors changed dramatically, it would impact all life on Earth. Earth's geography is as diverse as its contents. The mixture of nitrogen and oxygen helps to keep the levels of carbon dioxide down which can create a heating effect if not kept in check. This combination allows for life to have breathable air while blocking the larger portion of the solar radiation that could poison the planet and its occupants. The sun is important to Earth because it helps regulate the climate, is the main source of energy for producers in the ecosystems and it keeps the oceans from freezing, along with providing light. One reason we sustain life on Earth is our atmosphere. It is where the cooler elements of iron and nickel rotate in a western direction at a slower rate than the inner core. Known simple as Earth, Gaia in Greek and Terra in Latin, there are many factors that allow for the possibility for life to exist. These volcanoes release carbon dioxide into the atmosphere, thereby replenishing the same. Venus' atmosphere is too hot and heavy to sustain life while the atmosphere on Mars is too thin and frigid. also keeps us from exploding, if there was no atmostphere the pressure from space would make us explode literally 0.0 0 votes 0 votes Rate! If just one of these factors changed dramatically, it would impact all life on Earth. Scientists have argued that habitable worlds need stars that can live at least several billion … It is important for the Earth’s core to cool rapidly to generate a magnetosphere. It is made up of mostly hardened silicate rock. There is the inner mantle and outer Mantle. This infrared radiation encounters the so-called greenhouse gases in the troposphere . If this process were to stop, everything would escape into space leaving our planet lifeless. Earth, the planet in which we live on, is the only known planet to have higher life forms occupying its surface. The magnetic field mainly deflects solar emissions which can essentially "fry" our planet, but our atmosphere protects us from objects such as asteroids and meteors. Without the sun, the planet's oceans would freeze, temperatures would drop and all life would die off without light or food. What is the rising action of faith love and dr lazaro? It is possible that a significant amount of water in the Earth’s early history came from volcanic outgassing. Plate tectonics can change sea levels of local regions. Our atmosphere helps protect us from the Sun's deadly rays. A latitude is the imaginary line running horizontally through the globe. This is essential for life to occur, along with a few other factors. So what may be true today, may not exist 1000's of years from now. © The Teaching Company, LLC. It does not have very many geological features and no activity on its surface. The hottest temperatures ever recorded was 70.7°C (159.26°F) in the Lut Desert of Iran in 2005. How does Charle's law relate to breathing? The magnetosphere, or magnetic bubble, in space is generated by the Earth’s magnetic field. Learn more about the origin and evolution of Earth. The earth is the only planet in the solar system that is known to have free liquid water. That being said, our very existence is a product of all these occurrences, ranging from the fine-tuning of photosynthesis to the stabilising effects of the Moon. As it passes through our atmosphere, however, most of these objects are broken apart and disintegrates before making landfall. The furthest we have gone within our Earth's interior is 12.3 km (7.6 miles), Kola Superdeep Borehole, and the core of Earth is approximately 6,371 km (3,958 miles). The next layer is approximately 2,900 km (1,800 miles) in width and is called the mantle. Covered in oceans and streams, mountains and valleys, our tiny little planet is teaming with life and varying landscapes. However, if all the carbon dioxide from the atmosphere were to enter the mantle, the Earth would freeze. For instance, the Earth’s atmosphere has a distinct light spectrum, which indicates that oxygen and other gases are present on our planet. It is used to describe the position of a particular place on the surface of the Earth. Create your own unique website with customizable templates. Another effect of tectonic plate movements is that the location of oceans keeps changing and so do ocean currents. Biological diversity - or biodiversity - is the term given to the variety of life on Earth and the natural patterns it forms. The carbon dioxide in the atmosphere mixes with rain to form carbonic acid, which eventually weathers rocks. The collision of the Indian and Eurasian plates resulted in the formation of the Himalayas, the highest mountain range on the planet. The Great Tours: England, Scotland, and Wales, Earth and how plate tectonics sets up life, Large Earthlike Planet Could Have Life-Sustaining Qualities. Earth's complete rotation around the sun takes approximately 365 days and its axial tilt of 23.5 allows for each of the poles to spend a little time in the sun as it rotates on its axis at about 24 hours for the full spin. Greenhouse gasses such as carbon dioxide within the atmosphere help to regulate the temperatures on the surface of the planet by "trapping" the heat and not allowing it to escape into space. The inner mantle is slightly less solid, like asphalt on a hot day. But we know that the pale blue dot of planet Earth is special as it sustains life and habitability, although this may not be obvious from such distances. Even astronomical studies of other planetary objects are done to better understand our world and how special it truly is. What are the units used for the ideal gas law? Does Jerry Seinfeld have Parkinson's disease? 96.5% of the water on Earth is contained in its vast oceans and aid the atmosphere in keeping Earth's temperatures moderate. As a result, around 540 million years ago, life on Earth evolved from simple, single-celled organisms to innumerable complex multicellular animals. Plate tectonics is one of the key characteristics of Earth that is believed to have played a major role in the evolution of complex life. what sustain life on earth ? Scientists are of the opinion that there is a relationship between plate tectonics and major evolutionary events in the fossil record. Earth's atmosphere is made up of 78% nitrogen, 21% oxygen, traces of water vapor, carbon dioxide, and other gasses. It forms the web of life of which we are an integral part and upon which we so fully depend. Plate tectonics plays a key role in the carbon cycle and in determining the amount of carbon dioxide in the atmosphere. without this natural greenhouse effects the earth would be too cold for life as we know to exist. Gravity is the Earth's magnetic pull towards matter which always tries to bring us closer to the Earth's core. One reason we sustain life on Earth is our atmosphere. Ozone absorbs cosmic radiation that is harmful to living things. All Rights Reserved. The magnetosphere deflects the continuous flow of plasma and charged particles released from the Sun and from space. Advertisement. The outer core is molten to the point of liquid in form. Much of this energy is either reflected away or absorbed by chemical in planets atmosphere, Most solar radiation making it through the atmosphere is degraded into longer wavelength infrared radiation . A region’s climatic system is largely dependent on ocean currents, which in turn are influenced by the movement of continental plates. Even though every planet has some force of gravity Earth's gravity is much greater than most other planets. Why don't libraries smell like bookstores? Solar energy , flowing through the biosphere warms the atmosphere , evaporates and recycles water generates wind and support plant growth, About one billionth of the sun’s output of energy reaches the earth – a tiny sphere in the vastness of space – in the form of electromagnetic waves mostly as visible light . These colliding continental blocks lead to the formation of mountains. The sun is important to every single aspect of life on the planet. Like the mantle, there are two layers to this section of the planet as well. Watch it now, on The Great Courses Plus. If Earth was closer, it would have been too hot for life. Ano ang Imahinasyong guhit na naghahati sa daigdig sa magkaibang araw? This water vapor condensed to liquid form on the surface of the Earth. Natural phenomenon such as volcanic eruptions are consistently observed to understand the process of geological changes that shape our planet. This opposite rotation at different speeds is what creates both our gravity and magnetic fields creating a positive and negative charge within the Earth's center. ( Log Out / Who is the longest reigning WWE Champion of all time? Gravity sustains life on Earth by holding the air in the atmosphere around Earth. Earth's primary geography consist of water, approximately 71%. Earth's atmosphere retains its heat making surface temperatures warmer for plants to grow while allowing enough heat to escape to keep things from getting too hot. U.S. executes 1st federal inmate in nearly 2 decades Within the atmosphere, it cools down and falls back down to the surface replenishing the water supply and helps to cool the temperature on the surface. Without water organic life can not exist. It is the hard rocky area of the planet that allows us to grow crops, holds the water on the surface, and basically walk around on.
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