Chem Exam 3 study Guide Answers Chap 12: 1. The divisions: core, mantle, & crust. Subdivisons: Lithosphere, hydrosphere, & atmosphere 2. 4 most abundant elements of earth: -oxygen -silicon -aluminum -hydrogen 3. 4 classes of minerals in lithosphere & elemental composition: oxide: oxygen (ore of iron: pigement) sulfide: sulfur (ore of lead) silicates: silicon & oxygen carbonates: carbon & calcium ( cement & lime) 4. Abestos: are tiny & sharp Benefits: fireproof
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According to the UN-Habitat, state of the world’s cities, 2008/09, page 129, a major flood in Surat, India, in 1994 resulted in an outbreak of a plague-like disease, and the official inquiry cited uncollected solid waste of which plastics are of greater percentage blocking drains. The disease caused panic country-wide and while the citizens blame the municipality, the public authorities in turn blamed the citizens for their lack of civic sense. Such a phenomenon of blame games when it comes to waste
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There was a lot of damage left in her wake. From polluted air to oil spills. The hurricane-battered Gulf Coast region still has many environmental problems to tackle. According to the U.S. Environmental Protection Agency administrator (Stephen Johnson), the region is dealing with mounds of debris, mold, and contamination from oil spills, broken infrastructure and reports of poor air quality in Mississippi. In Mississippi, air sampling between Oct. 7 and 19 at the Stennis Space Center
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steps should be taken to save our life before everything is too late. There are three environmental problems that have increasing serious levels: pollution, natural destruction and climate change. Firstly, pollution has been found to be present widely in the environment. Pollution decreases dramatically the living qualification. We know that pollution causes not only physical disabilities but also psychological and behavioral disorders in people. Secondly, there are many causes of natural destruction
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in the space and deadly carbon monoxide. Basically, this was like running a car inside a closed garage; problematic and fatal. 2. The Romans invented a system called hypocaust, a central heating system in a building that produces and circulated hot air below the floor of a room. They also created a series of pipes with it that would warm the walls and upper floors. Today, we use radiant heating by embedding tubing in a concrete slab and circulating hot water through it as a method of hypocaust. 3
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A new economic analysis published in the highly prestigious American Economic Review has made a damming assessment of the costs of pollution from fossil fuel industries, and concludes that coal is doing more harm to the US economy than good – and that doesn't take into account its climate impact. The paper by respected economists Nicholas Muller, Robert Mendelsohn (Yale) and William Nordhaus (Yale), models the physical and economic consequences of emissions of six major pollutants (sulfur dioxide
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separate production (industrial premises and sites) for products such as penicillins, live vaccines, biological preparations containing living microorganisms, and some other biological products or the use of closed circuit of production • Installation of air locks, exhaust systems and providing pressure differentials • Reducing the risk of contamination caused by recirculation or
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I. INTRODUCTION A Asbestos gaskets are very effective for the prevention of leakage and are commonly used in pressure vessels and piping systems in many industries. However, asbestos is an extremely dangerous chemical substance, which can cause serious illnesses. In Japan, the production of asbestos and its usage was banned from 2008 [1]. Gasket alternative research challenge was developed after asbestos banned. Most of researcher has been investigated new materials, and several researchers choose
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Black Molds and Lungs Mold infestations in buildings can be quite a dangerous and costly problem, especially when it involves the toxic black mold. Scientifically referred to as Stachybotrys chartarum, black mold is known to a number of health effects when ingested or inhaled (Ammann, 2016). The health effects and symptoms of exposure to S.chartarum cover a significant range of health issues and as such, having a clear knowledge of the indicators is necessary. The most common health effects and symptoms
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issue, the U.S. Environmental Protection Agency (EPA) is developing a research agenda on the environment and older adults. The U.S. EPA proposes to apply an environmental public health paradigm to better understand the relationships between external pollution sources → human exposures → internal dose → early biologic effect → adverse health effects for older adults. The initial challenge will be using information about aging-related changes in exposure, pharmacokinetic, and pharmacodynamic factors to
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