Set No - 1 Subject Code: R13106/R13 I B. Tech I Semester Regular Examinations Feb./Mar. - 2014 ENVIRONMENTAL STUDIES (Common to CE‚ ME‚ CSE‚ PCE‚ IT‚ Chem E‚ Aero E‚ AME‚ Min E‚ PE‚ Metal E) Max. Marks: 70 Question Paper Consists of Part-A and Part-B Answering the question in Part-A is Compulsory‚ Three Questions should be answered from Part-B ***** What are the causes of floods and droughts? What are ecological pyramids? Write about different types of pyramids Write about different values of
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world are affected by natural disasters. These may be caused by climate change such as drought‚ flood‚ and cyclone‚ the environment such as pollution‚ deforestation‚ desertification‚ pest infestation or combinations of these‚ or the destroy of ozone layer will contribute to the green house effect. People’s homes are wiped out and livelihoods are destroyed. Poverty‚ population pressures and environmental degradation mean that increasing numbers of people are vulnerable to natural disasters. In Australia
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Lecture :1 Geography: Geography is the study of locational and spatial variation in natural and human phenomena on Earth. Vidal de la Blache Geography is the science of places‚ concerned with the qualities of potentialities of countries. The particuler character of a country is expressed by the totally of its feature‚ the social diversities associated with the diversities of places.Geography mainly divided into two parts. • Physical geography • Human geography Physical
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atmospheric carbon dioxide by at least 35%. (Boorse‚ 2011). The impact that humans have had on this cycle has change many different elements of the natural environment. An example is the ozone layer is slowly being thinned out‚ which in turn is heating up the atmosphere of the earth. The thinning of the ozone layer is leading to changes with water level. The natural changes to the carbon cycle have been slowed compared to the rate at which humans are adding carbon dioxide to the atmosphere. (unknown)
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PROJECT in our physics class to somehow lessen our environmental problem. Our project to be investigated is the HOMEMADEOR NATURAL INSECTICIDE. We all know‚ that our Ozone layer is getting thinner and thinner every time because of the chemicals we use daily. Now‚ to lessen the problem in our ozone layer‚ we are going to study about the use of natural insecticide. We can not only protect and help preserve our environment‚ we can
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changing the earth‚ affecting the land and plants‚ also the land and the ocean animals‚ and finally humans. I. Biological and Physical Changes happening to the earth A. Human activity 1. Chemical use 2. Deforestation 3. Industrial activity B. Ozone Layer 1. Becoming thinner 2. Gases cannot escape II. Land and Plants affected A. Plant changes 1. Hotter‚ and dryer temperatures 2. Life cycles are changed 3. Photosynthesis is affected B. Land changes 1. Water supply 2. Quality of food
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contains three compositional layers- CORE‚ MENTLE & CRUST. Core: At the centre is the densest of the three layers‚ the core. The core is a spherical mass‚ composed largely on metallic iron‚ with lesser amount of nickel and other elements. Mantle: The thick shell of dense‚ rocky matter that surrounds the core is mantle. The mantle is less dense than the core but denser than the outer most layer‚ the crust. Crust: Above the mantle lies the thinnest and outermost layer‚ the crust‚ which consists
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dangerous chemicals that have found their way into the air. Five Sources Cited Pollutants in the air are a serious environmental issue today. We‚ as an industrial society‚ have become far too familiar with terms like smog‚ radon‚ lead‚ asbestos‚ ozone‚ and carbon monoxide. We have also seen on the news‚ read in the newspaper‚ or experienced in our own lives some of the harmful consequences that result from these pollutants -- perhaps as allergies or congestion from exposure to smog or more dangerous
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Introduction The major objective of the report is to illustrate the coffee machine environmental life cycle analysis‚ so as to satisfy the increasing demand of the customer for the expectation of the environmental protection as well as to response to the new implemented environmental legislation. As one of the responsible manufacturers located in U.K. specialized in the production of coffee machines dedicated for the public and domestic application‚ the conduction of the environmental life cycle
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carbon dioxide (CO2). - Environment was anoxic (no free oxygen) = no ozone layer‚ earth exposed to high solar radiation (UV) - Early Earth = atmosphere of water vapour‚ hydrogen‚ methane and ammonia making production of organic carbon-containing easier. - energy for driving these reactions could have come from a number of sources‚ in particular the sun. Ultraviolet light would easily have reached the Earth’s surface because no ozone layer existed. Other sources include: lightning‚ hot springs and volcanoes
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