Guess Paper – 2009 Class – X Subject – Chemistry (P- Block Elements) Kalra sir 09460472649 kalra1977@rediffmail.com Group 15 elements: |Symbol |Atomic |Electronic configuration | | |number | | | |7 |[He]2s22p3 | |N | | | |P |15 |[Ne] 3s23p3 | |As |33 |[Ar]3d104s24p3
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Environmental Pollution Samantha Arrieta SCI/256 November 5‚ 2013 Analila Lucero Environmental Pollution As an associate-level environmental scientist‚ many concerns have risen in regards to the environmental‚ climate‚ economical and social consequences. Because of overpopulated cities‚ there have been some negative factors. The focus to address these issues could be in addressing the weaknesses in already existing laws with stronger enforcement. In the following‚ I will present a summary
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1. INTRODUCTION Environmental Pollution is the most important threat to the human race on this planet today. Environment consists of earth‚ air‚ water‚ flora and fauna. It means adding impurity which threatens the life of flora and fauna to the environment. These impurities are mainly created by man-made activities. The impurity can be air‚ water‚ land any sort of thermal radiation‚ etc. As we moving towards globalization there is rapid increase in industrialization and technological growth which
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Environmental pollution is not a new fact. It is one of the biggest problems the world faces today. It is a big matter which is disturbing us economically‚ physically and our normal life. According to the Scott Forseman‚ pollution is defined as the addition of any substance of form of energy to the environment at a rate faster than the environment can accommodate it by dispersion‚ decomposition‚ recycling or storage in some harmless forms. Our precious earth is daily polluted in a variety of ways
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➢ Environmental pollution is contamination of air‚ water and land from man-made waste that causes instability‚ disorder‚ harm or discomfort to the ecosystem i.e. physical systems or living organisms. ➢ Pollution leads to depletion of the ozone layer‚ global warming and climate change. ➢ Pollutants are the elements of pollution. A pollutant is a waste material that pollutes air‚ water or soil. Three factors determine the severity of a pollutant: its chemical nature‚ the concentration
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polluted all the three realms of the earth-lithosphere‚hydrosphere & atmosphere.it is essential for us to know about environment & its pollution. In this presentation we will be able to know about- •Environment •Biosphere •Ecosystem model •Atmosphere •Atmospheric pollution •Primary & secondary pollutants •Acid rain •Ozone depletion •Green house effect •Noise pollution That which surrounds‚ the total sum of the condition of the surroundings within which an organism‚ or group‚ or an object‚exists(including
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Pollution - Environmental pollution is any discharge of material or energy into water‚ land‚ or air that causes or may cause acute (short-term) or chronic (long-term) detriment to the Earth ’s ecological balance or that lowers the quality of life. Pollutants may cause primary damage‚ with direct identifiable impact on the environment‚ or secondary damage in the form of minor perturbations in the delicate balance of the biological food web that are detectable only over long time periods. Until relatively
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Term Paper on Environmental Pollution Prepared by: Joeren S. Rapista Submitted to: Mrs. Nena Visto Environmental Pollution Introduction I – Environmental Pollution A. Definition B. History II – The kind of pollution and their effects A. Air Pollution B. Water Pollution C. Solid Waste Pollution D. Noise Pollution E. Lead Pollution Effects Solution Bibliography “What is Environmental Pollution?” With Philippine
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sejahtera‚ today I would like to discuss about our world is not a safe place to living in anymore. My opinion is because of environmental pollution. Nowadays‚ we always receive news about pollution. Everytime when we read newspaper at least we will have three or four reported environmental pollution in Malaysia. It is just in Malaysia‚ how about all over the world? Environmental pollution has become a major issue over the years and one of the biggest problems the world faces today. It is an issue that troubles
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Environmental pollution is the biggest menace to the human race on this planet today. It means adding impurity to environment. The environment consists of earth‚ water‚ air‚ plants and animals. If we pollute them‚ then the existence of man and nature will be hampered. It is true that trees are being cut down rapidly. Our earth is becoming warmer. If pollution continues‚ the day is not far when our earth will be a boiling pan and become a desert. Or it will be covered with sea water causing destruction
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