1. Water vapor is known to be Earth's most abundant greenhouse gas, but the extent of its contribution to global warming has been debated. The greenhouse effect refers to the fact that certain gases in the atmosphere, such as methane, _____. Some examples include: forest fires, Twitter. My . The Earth's atmosphere has all of those things which keep it under control. The atmosphere consists of five layers and is approximately 60 miles thick. On Earth, all that water vapor belched out of volcanoes condensed in the young atmosphere into liquid water, then fell to the surface. Air wants to move from areas of high pressure to areas of low pressure. A real greenhouse traps heat because its glass stops the warm air inside from transferring heat to the colder surrounding air. Just as too little greenhouse gas makes Earth too cold, too much greenhouse gas makes Earth too warm. In short, our atmosphere is here because of gravity. Carbon dioxide comprises 0.04% of the atmosphere, methane 0.00018% and nitrous oxide 0.00003%. 2.5 km/s c. 0.62 km/s d. 0.44 km/s e. 0.25 km/s Global warming advocates claim that CO2 rises up in the atmosphere and traps and retains heat. (b) convection currents in the Earth's mantle. Gravity acts perpendicular to the direction of rotation, so it would not be able to cause this motion. Almost all weather is in this region. This is the source of energy for Earth's climate and biosphere. Because of that UV radiation, the higher up you go into the stratosphere, the warmer temperatures . In addition to changes in Earth's climate, throughout Earth's history the amount of gases in the atmosphere has also varied significantly. This heat trapping is known as the greenhouse effect. They keep the temperature in a range that can support life. Through humans every day activity carbon dioxide and greenhouse gases are released into the atmosphere. Answer (1 of 5): A meteorite has both potential and kinetic energy before entering the atmosphere of the Earth. The atmosphere also provides oxygen to humans and carbon dioxide to plants. Even though its volume in Earth's crust is relatively small, nitrogen plays an important role in the nitrogen cycle. January 27, 2012 at 12:00 a.m. For a planet to retain its atmosphere, the planet must be heavy enough to hold the molecules making up the atmosphere down. Over time, aerobic organisms evolved and consumed some of the oxygen produced. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The gravity of a planet helps to determine whether an atmosphere can be retained. This brings up a third and the ultimate mechanism by which the Earth's heat escapes into space, which is electromagnetic radiation. When at sea level and breathing room air, the . Convection. This type of heating is most commonly seen in the kitchen with a boiling liquid. (a,d,e) earthquakes, volcanic activity, mountains. The ozone layer, which absorbs and scatters the . The greenhouse effect is a natural process that warms the Earth's surface. Hence the kineti. The atmosphere does the same. About 70% is absorbed by the planet, and the remaining 30% is reflected back to space by various surfaces such as clouds, ice, and deserts. Density of the atmosphere decreases as the altitude increases, because as you go up you are getting further from the earth. The Earth's magnetic field protects against solar winds that would otherwise wipe away the atmosphere from our planet, researchers announced Thursday. Mars has a shallow atmosphere compared to Earth, but it is also only 1/3 the size of Earth. It does the opposite of both claims. The convection in the mantle affects the crust. Temperatures in the stratosphere increase with altitude. The Earth's magnetic field protects against solar winds that would otherwise wipe away the atmosphere from our planet, researchers announced Thursday. This heating effect is called the greenhouse effect. a. create energy in the atmosphere b. capture and retain some energy in the atmosphere c. transmit most terrestrial (long-wave) energy in the atmosphere The major processes that heat the interiors of the terrestrial worlds are. It consists of roughly 78% hydrogen, 21% oxygen, and everything else is the tiny 1%. Wiki User. This jacket of gases does a lot for us. Nitrogen is incredibly stable and requires a lot of energy to change forms. Earth's atmosphere is a thin band of air made up of numerous layers based on temperature. When Earth formed, about 4.5 billion years ago, the molten planet barely had an atmosphere. It means that it needs to have adequate gravitational attraction acting on the molecule. (e) the creation of mountains. How does an atmosphere affect the surface of a planet and the ability of life to exist? The earth is source of the the gravitational force that is holding the air molecules in our atmosphere. It would only be able to keep the atmosphere from drifting outside of Earth's gravitational field. Follow Us: Facebook. (d) volcanic activity. Our atmosphere is a mixture of gases that surround Earth. Water is essential to . A jacket for the planet. This is where the how-close-you-are-to-the-sun part comes in. Atmospheric Absorption is the process through which gases and small particles in the atmosphere absorb a large percentage of solar radiation. (a) earthquakes. The region between the ground and the stratosphere where convection and weather take place is known as the troposphere. The Atmosphere and Earth's Temperature. It keeps us warm, it gives us oxygen to breathe, and it . Put the following events in the order they occurred to lead to the formation of the solar system: A. B. . False. The warm air that was touching the ground rises and the cool air sinks. And our atmosphere keeps the X-ray/gamma ray radiation . That is, why does Earth have an atmosphere? Without them, Earth's surface temperature would be about 59 degrees Fahrenheit (33 degrees Celsius) colder. Continue the conversation on Twitter Facebook Contact Us The atmosphere traps energy from the sun because in our atmosphere are greenhouse gases, like carbon dioxide (CO2) and methane. It reaches from the top of the troposphere, which is called the tropopause, to an altitude of approximately 50 kilometers (30 miles). Here are 10 tidbits: 1. But as . An atmosphere (from Ancient Greek ἀτμός (atmós) 'vapour, steam', and σφαῖρα (sphaîra) 'sphere') is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body. Latent heat, along with birds, ride those rising columns of air. Heat moves in the atmosphere the same way it moves through the solid Earth (Plate Tectonics chapter) or another medium.What follows is a review of the way heat flows and is transferred, but applied to the atmosphere. And yet, although you might not realize it or think about it, Earth does continually lose some of its atmosphere to space.. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low. Through graphs that chart the changing temperatures and amounts of carbon dioxide through out the years, evidence has shown that the Earth is experiencing effects of global warming thorough each passing year. A. the atmosphere is layered B. the atmosphere surrounds most of the Earth C. the atmosphere is important only to animals D. the at. Finally, you can lose atmosphere to the surface. The sun's radiation consists of a wide range of light in the electromagnetic spectrum . The objects are drawn to scale, and their data points are at the black dots in the middle. 2 Most of the sun's radiation is absorbed by the Earth; only . The heat source for our planet is the sun. Venus and Earth are about the same size and both have atmospheres. Most of the atmosphere (to a height of 25 km) is composed of just two gases: nitrogen (78%) and oxygen (21%). According to the U.S. Geological Survey, the Earth's atmosphere holds around 12,900 cubic kilometers (3,100 . The lower the altitude, the higher the air. However, that doesn't mean Earth's atmosphere is undetectable beyond 621 miles. On Earth, much of the carbon dioxide that is normally generated is dissolved into the oceans. As it enters and falls towards the surface of the Earth, frictional heating occurs, caused by collision with the molecules in the atmosphere which reduces its velocity. The atmosphere also provides oxygen to humans and carbon dioxide to plants. When at sea level and breathing room air, the . Air in the atmosphere acts as a fluid. Asked By Wiki User. By Orange County Register. Unanswered Questions . Stratosphere. Without an atmosphere, Earth would likely be just another lifeless rock. Figure 1. The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. View Answer. The conclusion came from a chance alignment . 2. Sunlight also evaporates water--from the oceans, from lakes and rivers and from green plants. It is kept in place by the pull of Earth's gravity. Why does earth retain water? By measuring the wavelengths of infrared radiation that reaches the surface, scientists know that carbon dioxide, ozone, and methane are significantly contributing to rising global temperatures. This answer is: . Earth's atmosphere has six layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, the ionosphere, and the exosphere. Greenhouse gases keep our planet livable. It means that it needs to have adequate gravitational attraction acting on the molecule. View Answer. "The atmosphere doesn't . The atmosphere also serves an important purpose as a medium for the movement of water. In contrast, the Earth has quite a thick atmosphere. Previous Next It is a natural phenomenon that helps regulate a planet's temperature. The origins of the term greenhouse effect are unclear. The gases keep out some of the Sun's scorching heat during the day. Enter your name: Scientists are concerned about changes in the Earth's atmosphere that will upset the balance of energy in or out of the Earth system. Around 2.5 mya, the amount of oxygen available in the atmosphere started to rise due to the evolution of photosynthetic organisms that produced oxygen. The atmosphere can condense onto the surface (rain and snow). What they do is present an empty space and then air pressure forces the air into the vacuum. Without this protective blanket, life on Earth would not exist as it protects us from heat and radiation . If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere. The answer is gravity - the same force that keeps us anchored to Earth. Read more about how oxygen became a major part of our atmosphere here. Atmospheric escape. Atmospheric escape is the loss of planetary atmospheric gases to outer space. That . Jupiter. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere . Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface. This part of the atmosphere is the most dense. So far, Earth is not too hot, not too cold, but just right (referring to the Goldilocks analogy). The atmosphere consists of five layers and is approximately 60 miles thick. . Carbon dioxide (CO 2) is produced from many different sources. Answer (1 of 7): The answer is simply gravity but let me make it more comprehensive. :) Edit : Here's 4 things: 1) Oxygen, which many living things need. A stellar atmosphere is the outer region of a star, which . An illustration of the layers of Earth's atmosphere (Image credit: ttsz via Getty Images). meteorite a. So the further away you get, the weaker the gravitational pull, so the less air molecules the higher you go. because the atmosphere keeps all the molecules intact? (c) plates to grow larger. The sun's radiation strikes the ground, thus warming the rocks. About half of that energy goes out into space, and about half of it returns to Earth as heat, contributing to the 'greenhouse effect.'. Earth's atmosphere protects life on the surface by filtering deadly ultraviolet radiation, destroying most meteors that pass through it and retaining heat. Earth is a great planet to live on because it has a wonderful atmosphere around it. It protects all lifeforms on the planet from the most harmful effects of the sun's ultraviolet and infrared radiation. Water is essential to . Greenhouse gases don't stop heat transfer in this way, but as this piece explains, in the end they have a similar effect on the Earth's temperature. The smaller the object, the lower the gravity, so the escape velocity is lower and it is harder to retain an atmosphere (Moon and Mercury). Convection is the transfer of heat energy in a fluid. How old is Earth? Earth's atmosphere protects life on the surface by filtering deadly ultraviolet radiation, destroying most meteors that pass through it and retaining heat. An atmosphere traps some of the outgoing energy, retaining heat - the so-called greenhouse effect. 2) Water which gives rain. An in-depth look at where all this incident energy goes can be seen in Figure 1 below. Heat deposited as the planets were built from planetesimals. This happening on a planetary scale creates areas of high and low pressure. Earth was bombarded by new materials after formation. ∙ 2009-10-21 21:39:05. 3. The average surface temperature of the moon, which has no atmosphere, is 0°F (-18°C). All living things need some of the gases in air for life support. Since this energy warms the earth's surface and atmosphere, some of it is or becomes heat energy. Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space. C. Hydrogen and helium formed atoms. Twitter. Using recent NASA satellite data, researchers have estimated more precisely than ever the heat-trapping effect of water in the air, validating the role of the gas as a critical component of climate change. 2) Water which gives rain. :) Edit : Here's 4 things: 1) Oxygen, which many living things need. 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