Earth's atmosphere is a unique reservoir of gases, the product of nearly 5 billion years of development. It sustains us and protects us from hostile radiation and particles from the Sun and beyond-the atmosphere serves as an efficient filter.When astronauts work in space, they must wear a bulky spacesuit that does everything to sustain and protect them that the atmosphere does for us all the time.Atmosphere is a gaseous mixture of ancient origin, the sum of all the exhalations and inhalations
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Physical Science II Lab Exercise 10 Pollution of Earth’s Atmosphere Earth’s atmosphere is a dynamic, complex, yet fragile system. Unfortunately it is not treated as such. Pollutants created in the environment by natural processes and humans have a negative impact on our world. Pollution is not a new concept that just became popular in this century. Over hundreds of years, people have taken notice of pollution and its effect on the quality of life. One of the biggest events being the industrial
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Origin and Evolution of the Earth’s Atmosphere Our present day oxygen is originated from H2O molecules and CO2 molecules. The high UV light divides the bonds between the molecules, leaving us with O and OH, which react to form O2 (molecular oxygen) and H. After the O2 begins to gather in the air, the ultraviolet light uses it ability to split matter, it then splits the O2 and produces O (atomic oxygen). Ozone is soon formed after the oxygen atoms react with the O2 to form ozone (O3). The ozone then
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Global Warming Effects on Earth Global warming has become one of the biggest effects on earth’s life for many years now. Every day there are more and more reason’s causing this huge effect on life. Global warming can become a huge danger in the future with the drastic increase it has been becoming over the years. Global warming is caused by reasons like the sun, and the greenhouses effect. Global warming is causes many problems. Wild life is being affected, sea levels are rising, glaciers
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further into subsystems known as: the Lithosphere, the Biosphere, the Atmosphere, and the Hydrosphere. Each of these elements performs a certain function that is dependent on the other. The Lithosphere is the Earth’s outermost rocker layer. The Biosphere consists of recently decayed and living organisms on Earth’s surface. The Atmosphere is the gases that surround the Earth. The Hydrosphere contains all of the earth’s water and ice, above and below the surface. Losing any of these systems
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Troposphere: The troposphere is the first atmosphere’s layer after the Earth’s crust. This is the layer where all the weather condition such as rain, snow, wind etc. happens. The layer starts immediately after the crust and because of the irregular surface of the Earth, the height of the layer can change, the maximum height is 20 Km and the minimum can be below 6 km. The composition of the troposphere includes nitrogen (78%), oxygen (20%), argon (0.93%, carbon dioxide (0.04%), water vapour and
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In the following I will discuss the atmosphere of the late Cretaceous (end of the dinosaur era) and how it may have contributed to the extinction events that occurred at the end of this era. I will also discuss how scientists determine the composition of ancient atmospheres. The Cretaceous period was from 145 to 65.5 million years ago. You had the early cretaceous epoch and the late cretaceous epoch. Mass extinction happened and comprised of 80-90% of marine species and 85% of land species, including
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The Earth's atmospheric air is a colorless, odorless and tasteless mixture of gases consisting mostly of nitrogen (N2) and oxygen (O2). It is the part of Earth's atmosphere that humans and all other animals breathe in order to obtain the oxygen needed to sustain life. The Earth's atmosphere not only contains the air we breathe, it also holds clouds of moisture (water vapor) that become the water we drink. Furthermore, it protects us from meteors and harmful solar radiation and warms the Earth's surface
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HUMAN HEALTH AND GLOBAL ENVIRONMENTAL CHANGE The Global Warming is not occurring evenly. The effect is high in the poles especially the Arctic. We know the Globe is warming from thermometers placed at various points in the Earth. This gives data from about 1830’s to current day. The oldest thermometer employed to find the atmospheric temperature was from Germany. But the disadvantage is we can go back only 200 years or so. To find the facet of climate before those periods, we use ICE. Ice
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Structure and Properties of Atmosphere Earth’s atmosphere refers to a layer of gases surrounding the earth, and it is retained by the gravity of the earth. Earth’s atmosphere protects life by warming the surfaces through green house effect, absorbing ultra violet radiations, and by maintaining temperature variations during daytime and night. The mass of the atmosphere is estimated to be about 5x1018 kg. The major gases of atmosphere by volume include; oxygen (21%), argon (0.93%) and nitrogen (78%)
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