radiation and broke down releasing chlorine and bromine into the ozone layer. The ozone layer is the earth’s ultraviolet shield. The chemistry is such that the chlorine and bromine attack the ozone‚ reducing it to ordinary oxygen which as no shielding effect from UV-B. The complex chemical reactions allow the chlorine and bromine to interact again and again with ozone molecules‚ until they eventually leave the ozone layer bonded to some other compound. Since the Montreal Protocol was developed to control
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2/18/13 Cause and Effects of Forest Fires A cause and effect essay is an essay that tells what the cause of something is and what the effect will be. For example‚ excessive rain causes floods‚ whereas lack of rains causes drought. In this essay‚ I am going to discuss the causes and effects of forest fires. In California‚ wild fires burned 30‚660 acres‚ in year 2010. Forest fires either
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Dear the Society for Earthquake Enthusiasts; I feel as a member of the Society for Earthquake Enthusiasts‚ I need to express my opinion on your ideas to move our headquarters to San Francisco. While I am a lover of California and appreciate California from afar‚ I feel as though we should rethink relocating to California. I feel as though this is the best choice to make due to the fact that the earthquake of 1906 was just only a preview of what the San Andreas Fault can do to San Francisco. Due
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The following table contains information on this product’s task times and precedence relationships. TASK TASK TIME(SECONDS) IMMEDIATEPREDECESSOR A 30 - B 35 A C 30 A D 35 B E 15 C F 65 C G 40 E‚F H 25 D‚G 106878243848Draw a precedence diagram What is the workstation cycle time (takt time)? C = Production time per day/Output per day =450 mins. x 60 seconds / 360 units per day = 27000 seconds/ 360 units C = 75 N=275/75=3.66 (4) Balance this line using the
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EARTHQUAKE IN BANGLADESH An earthquake is a sudden‚ rapid shaking of the Earth caused by the release of energy stored in rocks. It is a natural phenomenon like rain. Earthquakes have occurred for billions of years. Descriptions as old as recorded history show the significant effects they have had on people’s lives. Long before there were scientific theories for the cause of earthquakes‚ people around the world created folklore to explain them. In simple terms‚ earthquakes are caused by the constant
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Cause and effect essay Photography is an admirable hobby 2012/10/14 What hobby can record and influence one’s entire life? Photography can. In fact‚ photography is interesting enough to attract hobbyist across the ages. The reason for photography is an admirable hobby thanks to at least three dimensions‚ which are: it keeps memories in mind‚ changes the way how people observe world‚ and trains one’s patience. First of all‚ photography could help keep important memories in mind especially those
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SUBKINGDOM: PROTOZOA Phylum | SARCOMASTIGOPHORIA | APICOMPLEXIA | CILIPHORIA | Class | Class: LOBOZEA (amoeba)Species: ENTAMOEBA HISTOLITICA: * Only pathogenic parasite of this class * in large intestine * morphology: 1.trophozoite ; 2. Quadrinucleate cyst - 15 micrometers (smaller than 10 is ‘non-pathogenic’)‚ found in colon and feces‚ 4 nuclei * Life cycle: > parasite in caecum > mature cyst is swallowed > cyst hatches in intestine and quadrinucleated amoeba come
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Causes of Stress on a College Student College students experience a lot of stress because of different causes that affect their daily life. Here are some reasons on why college students are stressed. First‚ we have the stress caused by adapting to a new life. College students have a heavier workload compared to their high school life. It is also in this phase that we experience the letting loose of teachers and parents to college students that will result to their being more independent. In there
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Introduction I am a private tutor and one of my student is a little girl whom I teach going to her place. Last year during the end of August‚ I remember going to her place one day and her maternal grandmother was staying there at that time. While I was teaching her‚ her grandmother suddenly started crying and was bemoaning about what happened to her family. Since I have been teaching that kid for over 2 years‚ I became quite close to that family. I asked her mother what happened. She then told
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outside of baseball. During the beginning the NBA playoffs are going on and towards the end the NFL season starts‚ two better viewing options than the MLB. Baseball starts too early because the leftover effects of winter are still felt in April with snowed out games and in October fall nights cause very low temperatures. Fans also are upset when they’re teams are already out of the playoff chase half way through the season. A sign that points to the non competitiveness of the MLB; the season always
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