1. What is Earth’s mantle? The mantle is a part of a terrestrial planet or other rocky body large enough to have differentiation by density. The interior of the Earth‚ similar to the other terrestrial planets‚ is chemically divided into layers. The mantle is a layer between the crust and the outer core. ... 2. What elements make up the Earth’s mantle? Magnesium‚ silicon‚ iron and oxygen‚ aluminum‚ silicon‚ calcium‚ sodium and potassium 3. Describe the “big splash” theory of the Moon’s origin? The
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evolution The phenomenon that populations of organisms change over the course of many generations. As a result‚ some organisms become more successful at survival and reproduction natural selection The process that eliminates those individuals that are less likely to survive and reproduce in a particular environment‚ while allowing other individuals with traits that confer greater reproductive success to increase in numbers. Directional selection is when natural selection favors a specific
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2012) They are defined as: the divergent or pull-apart motion at spreading centers cause rock to fail in tension; the slide-past motion occurs as the rigid plates fracture and move around the curved Earth; and the convergent motion that occur at subduction zones and in continent-continent collisions store immense amounts of energy that are released in Earth’s largest tectonic earthquakes. (Abbott‚ 2012) Typhoons (Hurricane) are huge tropical cyclones in which heat is built up over long periods of summer
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Geology Final exam Review EXAM 1 1. What is a mineral? A mineral is a naturally-occurring‚ inargonaic‚ crystalline solid with a definite chemical composition and characteristic physical properties. 2. What are eight chemical elements that make up over 99 percent of Earth’s crust? Oxygen (O)‚ Silicon (Si)‚ Aliminum (Al)‚ Iron (Fe)‚ Calcium (Ca)‚ Sodium (Ca)‚ Potassium (Na)‚ Magnesium (K) 3. What are six fundamental geologic principles which are used in relative dating? Superposition‚ original
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What is EEW? The Earthquake Early warning (EEW) will give advanced warning to those who will experience a tsunami. All earthquakes produce a series of different types of shock waves‚ which travel at different speeds and carry different amounts of energy. The fastest shock waves‚ and the first to arrive‚ are called P waves. These travel about twice as fast as the next fastest shock waves and rarely cause any damage. The next shock waves to arrive are called Shear waves (or S waves)‚ followed by
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two chosen natural disasters includes the 2011 Japanese tsunami/earthquake and the 2010 Haiti earthquake. Disaster 1 – Japanese Tsunami and Earthquake On Friday the 11th of March 2011‚ a magnitude 9.0 Earthquake struck coastal waters‚ along a subduction zone‚ surrounding Japanese islands. At the time of the Earthquake‚ no one expected what was about to occur‚ one of the most devastating tsunamis to have ever hit Japan. Earthquakes are caused by forces deep within the Earth when two blocks of the earth
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wrong way‚ they may be vulnerable and then run out. Obviously‚ people can afford a new house‚ but they cannot have a new environment. The only thing we can afford is trying to save our evnironment as soon as possible. According to Gedden Cascadia‚ every kind of living beings on earth has a definite quantity of time to survive before unavoidable extinction begins to affect it. Therefore‚ we need to realize what is happening with “our house” and fix the problems. It should be quickly
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is based on the application of the scientific method Lecture 2 * In the middle‚ ascending mantle material makes a mid ocean ridge * In areas where two continents are pushing against each other‚ one sinks underneath the other producing subduction zones that create deep trenches * Solid water (ice) displaces more volume than liquid water‚ therefore it floats * Seawater contains dissolved gasses that are exchanged with the atmosphere: gas exchange * The ocean is usually layers or
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1. As seen by an observer on Earth‚ a star that is moving away from the Earth would have ______ light energy waves. A. expanded B. compressed *E. both A and D are correct 2. The theory that tries to explain the origin of the universe revolves around the idea that __________. *B. the original black hole exploded and scattered clouds of uncharged particles moving at high velocities 3. What was the first element formed during the creation of the universe? *B. hydrogen 4. Our solar system
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called the proto-Atlantic or Iapetus after the father of Atlas‚ for whom the Atlantic Ocean is named. Towards the end of the Precambrian‚ the tensional forces changed to compression and subduction began. Volcanic islands grew as a result of andesitic volcanism associated with the subduction. With continued subduction and convergence‚ volcanic islands collided with North America and those rocks were thrust up on the continental margin. Deformation‚ metamorphism and magmatism accompanied this collision
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