concerned with the organisms of the planet and how the planet has changed over time. Geologists search for fuels and minerals, study natural hazards, and work to protect Earth's environment Meteorology is the study of the atmosphere and how processes in the atmosphere determine Earth's weather and climate Oceanography is the study of Earth's oceans - their composition, movement, organisms and processes. Astronomy is the study of the universe Lecture note 2. Earth in the Universe According to the Big
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Session – 14 Unit – VI CLIMATIC CHANGE AND GLOBAL WARMING Dr. H.S. Ramesh Professor of Environmental Engineering S.J. College of Engineering, Mysore – 570 006 Carbon di-oxide is a natural constituent of atmosphere, but now, its concentration is increasing at an alarming rate. According to an estimate, CO2 level is expected to be doubled by 2030 A.D. The term ‘Green House Effect’ is also called as ‘Atmospheric Effect’, ‘Global Warming’ or ‘CO2 Problem’. Human activities are changing the composition
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temperatures to rise by trapping excess heat in the earth’s atmosphere. Arrhenius understood that the earth’s climate is heated by a process known as the greenhouse effect. While close to half the solar radiation reaching the earth’s surface is reflected back into space, the remainder is absorbed by land masses and oceans, warming the earth’s surface and atmosphere. This warming process radiates energy, most of which passes through the atmosphere and back into space. However, small concentrations
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Professor Worek Telescopes in Astronomy Peering out beyond the confines of the Earth was a daydream for early scientists. Staring into the heavens from the Earth limited the scientific community’s ability to study the cosmic bodies above the Earth’s surface. As curiosity grew to explore the Sun, moon, stars and far-reaching corners of the universe, creativity was sparked leading to the development of tools like a telescope to assist scientists with examining outer space and its contents. The
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degrees Fahrenheit . At this level, the sun's gravity (which according to David R. Williams (December 16, 2016) Sun Fact Sheet Retrieved from: https://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html is 274.0 m/s squared on the surface compared to Earth’s 9.78 m/s squared, which turns out to be a ratio of 28.016:1) can't hold on to the rapidly moving particles, and it streams away from the star in the form of a “solar wind”. The properties of solar winds differ based on factors including but not limited
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time moved on, the earth cooled down and is still cooling, as of today. As a result of the cooling process, denser materials like iron and sulfur sank to the inside of the earth; whereas, lighter materials like silicates and water floated near the earth's surface. Coming to the topic of our discussion, our planet earth comprises several layers. Starting from the surface, there are four main layers; namely, the crust, the mantle, the outer core, and the inner core. The pressure and temperature increase
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largest of the planets of the Solar System. Earth’s surface is 71 percent water and is the only astronomical planet currently known where life exists. Earth is our home planet. Scientist and astronomers have studied our planet for Centuries and they have discovered much about our planet. Scientist have gained so much more knowledge of our Solar System in the last half-century after the NASA launched the first spacecraft and travel beyond Earth’s atmosphere has opened up to those who wish to explore
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given to us comes from scientists or experts in the field of global warming. We are continually bombarded with information that the Earth is experiencing a warming trend, and human activity is to blame. The pollution that man creates is adding to the earth’s greenhouse gases. The resulting affect of global warming is triggering warmer temperatures around the world, and ecosystems are taking the toll. One of the most publicized looming catastrophes is the plight of the polar bears. Once the glaciers are
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PROJECT TOPIC : GLOBAL WARMING MOHAMED HASSAN SPN150597 Contents 1. INTRODUCTION ................................................................................................................................ 2 2. DEFINITION GLOBAL WARMING .................................................................................................. 3 3. WHY DOES GLOBAL WARMING OCCURE? ............................................................................................ 3
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Global Warming Global warming is the warming near the earth's surface those results when the earth's atmosphere traps the sun's heat. The earth is getting warmer. The changes are small, so far, but they are expected to grow and speed up. Within the next fifty to one hundred years, the earth may be hotter than it has been in the past million years. As oceans warm and glaciers melt, land and cities along coasts may be flooded. Heat and drought may cause forests to die and food crops to fail. Global
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