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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The importance of environmental protection Environmental protection is an increasingly pressing issue all over the world. Ozone depletion‚ green house effect‚ global climate changes or global warming‚ etc‚ are the main issues in environment. Recent years‚ many countries and various organizations have paid more attention into environmental protection. A treaty about global environmental protection was discussed by 192 nations in Copenhagen in December 2011. But I fell every individual
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Environmental Threats Global Problems Sea Level Rising At present‚ sea levels around the world are rising. Current sea level rise potentially impacts human populations and the natural environment. Global average sea level rose at an average rate of around 1.7 ± 0.3 mm per year over 1950 to 2009 and at a satellite-measured average rate of about 3.3 ± 0.4 mm per year from 1993 to 2009‚[01] an increase on earlier estimates.[02] Climate change Destructive sudden heavy rains‚ intense tropical
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country indicate their pitch in decibel in the nosiest areas of corresponding cities‚ e.g. Delhi- 80 db‚ Kolkata - 87‚Bombay-85‚ Chennai-89 db etc. 3 Sources of Noise Pollution:- Noise pollution like other pollutants is also a by- product of industrialization‚ urbanizations and modern civilization. Broadly speaking ‚ the noise pollution has two sources‚ i.e. industrial and non- industrial. The industrial source includes the noise from various industries and big machines working at a very high speed
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smoke billowing from a factory chimney‚ flyash generated by thermal power plants‚ and speeding cars causing dust to rise from the roads. Natural phenomena such as the eruption of a volcano and even someone smoking a cigarette can also cause air pollution. | | |The gaseous composition of unpolluted air | |
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General Education I-A Submitted to: Mrs. Josefa Deyto Professor Pollution is said to be one of those problems that our environment is facing right now‚ due to its harmful effects to everyone and also to our atmosphere. We have different kinds or types of pollution; we have pollution in land‚ in water and in air. We all know that these came from pollutants which were produced by human. Some of these are wood burning to produce
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(SPM) Oxides of nitrogen (NOx) Hydrocarbons (HC) Polynuclear aromatic hydrocarbons (PAHs) 2005 Air Toxic Emissions from On-road Mobile Sources (Tox-weighted) Affects of Automobile Pollution 1. In India about 15-20 million people are asthmatic because of emission of automobile pollution. 2. N02 is a highly toxic gas and attacks the lungs causing lung cancer and emphysema. 3. Automobile pollutants interferes the development and functioning of the nervous system. 4. Some diseases
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Pollution is the introduction of harmful substances or products into the environment. It is a major problem in America and as well as the world. Pollution not only damages the environment‚ but damages us also. It has cause many problems ranging from lung cancer to the greenhouse effect. It is all among us and but we continue to live in our own filth. What is the reason behind this flawed logic? In this paper I will examine the problems and solutions for this issue. Automobiles are undeniable
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Air pollution is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort‚ disease‚ or death to humans‚ damage other living organisms such as food crops‚ or damage the natural environment or built environment. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems
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Nowadays‚ many countries are facing serious pollution problems. These problems are caused by human activities and the areas that most affected are land‚ water‚ and air. However‚ there are some solutions that can help people and the environment. Land pollution is a major problem which is increasing day by day. In my opinion‚ the main problem on land is litter on the streets. Fortunately‚ there are a number of possible solutions which could lead to a permanent reduction in the waste. One way would
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