converting CO2 into O2 by the green pigments of leaves of trees with the help of sun rays and due to deforestation the trees will be insufficient) increases the quantity of Carbon dioxide thus makes the Globe warm. **The Methane (CH4) and Nitrous oxide (NO2) gases produced by the excrement and feces (solid waste from animals **which is 130 times more than human beings) are playing havoc with Global environment. Its effect is thirty times more than carbon dioxide. **260 million acres of U.S. forest have
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Post Box No. 503‚ Sector 44‚ Noida 201 303 ENVIRONMENT MANAGEMENT (ADL-18) ASSIGNMENTSSubject Name Code Environment Management (ADL-18)Study Centre Enroll No. Term/Semester Jan ./ July Date ASSIGNMENT INSTRUCTION Total weightage given to these assignments in over all evaluation is 30. (40 when no PCP) All assignments are to be completed preferably in your own hand writing. All questions are required to be attempted. Three
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HOMEWORK EXAM 3: Chapter 19: The half life of 90Sr is 29 years. What fraction of the atoms in a sample of 90Sr would remain 175 years later? Answer 0.166 0.125 0.062 here 0.015 Which relation is not correct? Answer 11p = 11H = proton 0-1e = 0-1β = electron here +10e = +10β= positron 10n = neutron As a result of beta decay‚ the product nucleus is Answer one atomic number lower than the original element. two atomic number
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CHAPTER 5 GASES AND THE KINETICMOLECULAR THEORY 5.1 Plan: Review the behavior of the gas phase vs. the liquid phase. Solution: a) The volume of the liquid remains constant‚ but the volume of the gas increases to the volume of the larger container. b) The volume of the container holding the gas sample increases when heated‚ but the volume of the container holding the liquid sample remains essentially constant when heated. c) The volume of the liquid remains essentially constant‚ but the volume of
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An Exploration of How to Prevent the Effects and Causes of Air Pollution Air pollution has not always been an area of individual problem but has always been a big major of global problem. In fact‚ air pollution is not a new issue to us. When I was in high school‚ I was already interested in doing research about air pollution. I began my search of my issue with the following questions in mind. What causes pollution? What are its effects? What can we do to prevent it‚ and get rid of it? Can
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Chapter 8: Salts 1. Salts A salt is an ionic compound. The anion part comes from the acid while the cation part comes from a base. Example: KCl‚ KOH(aq) + HCl(aq) KCl(aq) + H2O(l) A salt is a compound formed when the hydrogen ion. H+ from an acid is replaced by a metal ion or an ammonium ion‚ NH4+. Salts Nitrate salts Carbonate salts Chloride salts Soluble All nitrate salts Potassium carbonate‚ K2CO3 Ammonium carbonate‚ (NH4)2CO3 Sodium carbonate‚ Na2CO3 All chloride salts Except Sulphate salts
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Air pollution From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Air pollution from World War II production Smog over Santiago‚ Chile Air pollution is the introduction of chemicals‚ particulate matter‚ or biological materials that cause harm or discomfort to humans or other living organisms‚ or damages the natural environment into the atmosphere. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone
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Sustainability has been defined as “meeting the needs of the present generation without compromising the ability for future generations to meet their own needs”. Sustainable development comes down to three core features of environmental protection‚ economic development and social progress. To improve sustainability around the world people have been encouraged to reduce their ‘footprint’ on the planet. There are key strategies to reduce the human ‘footprint’ on the globe‚ some of these are recycling
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Chemistry 161 Sample Quiz Chapters 1&2 KEY Harold Note: You have already received a significant figures/scientific notation sample quiz. The first ten problems (20 points) will be of exactly the same type. The numbers will be changed to offend the guilty (those who did not use the sample test as a study guide). 1. The term that refers to the reproducibility of a laboratory measurement is a. precision. b. repeatability. c. accuracy. d. exactness. e. the number of S.F. 2. The distance
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Joe Heredia Professor Few ENG 111-NO2 23 August 2013 The Legacy of the Family Trip When I was twelve‚ my father‚ a member of the Air Force‚ was stationed on the coast of Southern California for three years. Since my grandparents lived in North Carolina‚ it became our family’s summer tradition to drive across the United States for a yearly visit. As a child‚ I viewed the annual summer crossing with dread. Being cooped up in our old pink station wagon - with my parents‚ sister‚ and two brothers
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