AIR POLLUTION What is Air Pollution? Pollution is now a common place term‚ that our ears are attuned to. We hear about the various forms of pollution and read about it through the mass media. Air pollution is one such form that refers to the contamination of the air‚ irrespective of indoors or outside. A physical‚ biological or chemical alteration to the air in the atmosphere can be termed as pollution. It occurs when any harmful gases‚ dust‚ smoke enters into the atmosphere and makes it difficult
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Causes of Air Pollution Air pollution is the introduction of chemicals‚ particulates‚ biological materials‚ or other harmful materials into the Earth’s atmosphere‚ possibly causing disease‚ death to humans‚ damage to other living organisms such as food crops‚ or the natural or built environment. The atmosphere is a complex natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been
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Water Pollution Part II Amanda Norris Groundwater Pollution pg. 502: Describe : Groundwater is the water we drink. Few countries go to the great expense of locating‚ tracking‚ and testing aquifers. Volatile organic chemicals (VOCs) contaminate 90% of the U.S. aquifers‚ but 2% of samples had unsafe VOC levels. The US found that ⅓of the 26k industrial waste ponds didn’t have liners to prevent toxic liquid wastes from seeping into aquifers. The EPA had completed the cleanup of 297k of the 436k underground
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What Water is Worth SCI/275 March 3‚ 2012 Karen Marasigan What Water is Worth We Need Clean Water to Survive Thomas Fuller‚ an English author‚ once wrote‚ “We never know the worth of water till the well is dry.” Humans are not the only organisms dependent on water for survival. Plants‚ animals‚ and the entire planet Earth are dependent on water. The Earth is made up mostly of water‚ but only three percent of that water can be considered fresh enough for human consumption. With only three
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FEASIBILITY OF TWO FRESH WATER SUPPLY TECHNIQUES IN SUDAN 1.0 INTRODUCTION Access to clean water is considered a basic human right and in many countries when sustainable development is considered‚ water is at the top of the list of priorities (Omer‚ 2008). The value of water is increasingly felt in areas such as Sudan‚ where precipitation is inadequate while temperatures are high resulting in dry or arid conditions (Food and Agriculture Organisation (FAO)‚ cited in USAID‚ 2010). Two-thirds
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Name: ______________________________________ Date: ________________________ Student Exploration: Water Pollution STANDARDS: SEV1: Students will investigate the flow of energy and cycling of matter within an ecosystem and relate these phenomena to human society. SEV 1a: Interpret biogeochemical cycles including hydrologic‚ nitrogen‚ phosphorus‚ oxygen‚ and carbon cycles. Recognize that energy is not recycled in ecosystems. SEV5: Students will recognize that human beings are part of the global ecosystem
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Directed Writing: Report Water issues that affected villagers health in the little village Written By: Jason Spencer Water is one of human beings most important basic needs. Human can survive without food for couples of days but somehow going without water‚ human will not survive. Using safe‚ clean‚ water is a basic human right. Mother Nature gifts us free water but selfish human beings keeps polluting the water with actions such as chemical leaks‚ littering into water‚ disposing industrial waste
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Gathering water for African villages is a job placed on the women. They spend countless hours carrying water from distant sources. These sources are often polluted and this continuous effort is an enormous waste of time that could be better used for childcare and education (Wanja). According to J.W.N. Riviere in a publication called "Threats to the Worlds Waters"‚ women and girls in Africa spend 40 billion person hours a year hauling polluted water. Both natural and man-made pollutants have damaged
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Pollution Introduction Pollution is the introduction of contaminants into an environment that causes instability‚ disorder‚ harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances or energy‚ such as noise‚ heat‚ or light. Pollutants‚ the elements of pollution‚ can be foreign substances or energies‚ or naturally occurring; when naturally occurring‚ they are considered contaminants when they exceed natural levels. Pollution became
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mixed with water create a solution or not. Research/Prior knowledge: Substances dissolve best in hotter water. You can use a flashlight to help see if a mixture is a solution‚ a suspension‚ or colloid. A solution is a mixture that forms when substances dissolve and form a homogenous mixture. A suspension is a heterogeneous mixture that separates into layers over time. A colloid is a mixture that contains some particles that are intermediate in size between the small particles in a solution‚ and the
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