Reproduction in whole or in part without permission is prohibited. It is the hottest layer of the atmosphere, but the air density is so low that the high temperature cannot be felt at all. For this reason exosphere is taken to be a part of the outer space. Gases like nitrogen (78%), oxygen (just under 21%) are the main constituents of the air. Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! This gaseous cover of the earth is known as the atmosphere. Almost all the atmospheric water vapor is found in this layer, meaning weather takes place in the troposphere. The life on the Earth exists because of the atmosphere that surrounds it. It is calculated that exosphere sides (lower limit) with the thermosphere at around 310 to 620 mile (500 to 1,000 kilometers) above the Earth’s surface. It is the densest layer, containing more than half the volume of total air. This website uses cookies to improve your experience while you navigate through the website. One of the interesting facts about this atmosphere layer is that the air is not steady and moves at a tremendous speed of 199 miles (320 kilometer) per hour. We also use third-party cookies that help us analyze and understand how you use this website. An increased solar activity which is apparent from the increase in the number of solar spots, can disturb the radio communication as it increase the number of charged particles in the ionosphere. In the troposphere, the temperature falls as we get higher up, and is the lowest at the tropopause that acts as the boundary between this layer and the next. The names of these layers, in order of lowest to highest, are: Temperature: 62°F (17°C) around the lowest point  to -60°F (-51°C) near the top. Gases from different industries as well as those from the burning of fossil fuels are contaminating the atmosphere and increasing the green house effect. In this layer, the higher you go the cooler it becomes up to the mesopause. this is where Earth’s jet stream (a narrow, fast, winding air current) is found as well. 4. The troposphere is the lowest layer of the atmosphere, and it is where we live. Recent studies have marked the weaker minimum at the 52.8 miles (85 kilometers) and the other which is considered as the stronger minimum at 62 miles (100 kilometers). Airplanes and other commercial aircraft fly in the troposphere. From the surface of the Earth, it extends out to about 3.7-5 miles (6-8 kilometers), at the poles and 10.5 miles (17 kilometers) at the equator. However, in this layer gas molecules concentrate at thermopause. All rights reserved. This layer of gasses is often referred to as air and is held by the earth’s gravity. It stretches over the mesosphere, most of the thermosphere, and some parts of the stratosphere. Temperatures in the mesosphere can be as low as -148º F (-100º C). Each layer is important to man and is studied under the branch of Earth science. Atmosphere is, therefore, a quick and effective media for transfer, transport and dissemination of gaseous wastes. The stratosphere is above the troposphere. Compared to the earth’s radius, the atmosphere appears to be only a very thin layer of gases. Ans. Copyright © Science Struck & Buzzle.com, Inc. They are caused by collisions between charged particles from space and the air molecules in the thermosphere and can be seen as spectacular displays of light in the sky near the north and south poles respectively. Below is the breakdown of the layers of the atmosphere. The atmosphere is the layer of gases surrounding a planet. Temperature: 932°F (500°C) to 3,632°F (2,000°C) – depends on how hot the sun is. The four main layers of the Earth are the crust, mantle, outer core, and the inner core. The stratopause which lies between 31 to 34 miles (50 to 55 kilometers) above the surface of the Earth, separates the stratosphere and the mesosphere. Ans. By Kimutai Gilbert on August 1 2017 in Environment. We hope you are enjoying ScienceStruck! It is the part of the atmosphere that contains the ozone layer, which is essential for our survival as it blocks the harmful UV rays of the Sun from reaching us.Unlike the troposphere, in this layer, the temperature increases as we go higher.

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