themselves. Most volcanoes have steep sides‚ but some can be gently sloping mountains or even flat tablelands‚ plateaus‚ or plains. The volcanoes above sea level are the best known‚ but the vast majority of the world ’s volcanoes lie beneath the sea‚ formed along the global oceanic ridge systems that crisscross the deep ocean floor. According to the Smithsonian Institution‚ 1511 above-sea volcanoes have been active during the past 10‚000 years‚ 539 of them erupting one or more times during written history
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What causes a volcanic eruption? When a part of the earth’s upper mantle or lower crust melts‚ magma forms. A volcano is essentially an opening or a vent through which this magma and the dissolved gases it contains are discharged. Although there are several factors triggering a volcanic eruption‚ three predominate: the buoyancy of the magma‚ the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber. What follows is a brief description
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What are the three most abundant lipids in the body? What is a triglyceride and where is it found? What is its exact chemical structure? What is the difference between saturated and unsaturated free fatty acids? What is a trans fat? Where can free fatty acids be found in the body? What is the unique structure of a phospholipid? Where are phospholipids found and what are their most important characteristics? What is a steroid fat? What is its structure? What are the most common steroid fats
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What are Greenhouse Gases? These are the gases that make up our atmosphere: Carbon Dioxide 89% Methane 7% Nitrous Oxide 3% Halocarbons 1% What is the Greenhouse Effect? The Greenhouse Effect is the way that gases in the atmosphere trap heat from the sun. They let heat in‚ but prevent most of it from escaping. It is essential for life because we need a certain amount of radiation to heat up our atmosphere. What human activities produce Greenhouse Gases? By burning fossil fuels such as coal‚ oil and
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out the media strategies used by Paytm during demonetization for the growth of Paytm and to study how the media strategies affected Paytm’s acceptance after demonetization. There are three main hypothesis for this study: Usage of Paytm increased during demonetization as the country went cashless‚ making it popular amongst all consumers. The wide acceptance of Paytm amongst various merchants increased its popularity. The 360 degree campaign of Paytm during demonetization made consumers go back to
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Teratogens during pregnancy There are many are many reasons why expectant mothers should be careful about what they are exposed to on a daily basis. In the following discussion I will list various types of Teratogens
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Most Significant Events Danielle Wilson Axia College of University of Phoenix September 20‚ 2009 Selecting an event from certain decades is not as easy as it may seem. Some of the decades had more than one event going on but only one had a significant impact on that decade. So the events mentioned will be those who have had a powerful impact culturally‚ economically and on government policies but those who had an influence here in the United States. The following decades are being put
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Properties and Behavior of Gases General Properties of Gases Properties Solids Shape Definite shape Volume Definite volume Particles and movement Compressibility Density Liquids Gases No definite shape No definite shape Definite volume No definite volume Particles are Particles are close close together together and and may vibrate move randomly in place Incompressible Slightly compressible Particles are far apart and move randomly Very compressible
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Oxygen is one of the most important and abundant elements on Earth. About 46 percent of the Earth’s crust is oxygen. It is colorless and odorless and makes up about 20.95 percent of the atmosphere by volume. Oxygen exists in water as part of water molecule‚ in the atmosphere as a gas‚ in the Earth’s crust and in an enormous variety of rocks and minerals. It can also be released from the plants through photosynthesis. Moreover it is very essential for life and is part of almost every biological molecule
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During the 1600s‚ as waves of Puritan immigrants arrived in the region of New England‚ settling the area and establishing population centers in areas like Massachusetts Bay‚ where the part of Boston was established. In contrast to the Chesapeake region’s inhabitants‚ the Puritan settlers did not come primarily for economic interests and for monetary gains‚ but actually out of a desire to create a more pure‚ moral society based on their street code of moral living and emphasis on the family and community
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