Presented By
Leanne Jones and Gemma Mansell


What is HEP
HEP (Hydroelectric Power) is an environmentally friendly way to generate electricity.
How it works
A dam is built to trap water, usually in a valley where there is an existing lake.Water is allowed to flow through tunnels into the dam,to turn turbines and thus drive generators.Notice that the dam is much thicker at the bottom than at the top,because the pressure of the water increases with depth.
A picture of how it works
Where is the bes ....etc

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ABSTRACT


This is a social website for encouraging people to abstain from various pollution causatives. It works on the principles of health promotion and strengthening the society. It not only makes the users aware of the diseases caused but also how to prevent them. It encourage, conduct and participate in investigations and research relating to problems of water, land and air pollution and its prevention, control and abatemen ....etc

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Abstract
Biogas technology, besides supplying
energy and manure, provides an excellent opportunity
for mitigation of greenhouse gas (GHG)
emission and reducing global warming through
substituting firewood for cooking, kerosene for
lighting and cooking and chemical fertilizers. A
study was undertaken to calculate (1) global
warming mitigation potential (GMP) and thereby
earning carbon credit of a family size biogas plant
in India, (2) GMP of the existing and target biogas
plants in the country and (3) atmos ....etc

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Introduction

-Combustion of fossil fuels have been a major problem in twentieth century.
-Currently fossil fuels supply 86% of the global primary energy for transportation, industrial, commercial and residential use.
-This means a lot of emissions of pollutants which lead to greenhouse effect
-Combustion of fossil fuels generates sulfuric, carbonic, and nitric acids, which fall to Earth as acid rain, impacting both natural areas and the built environment.
-Monuments and sculptures made from marble and l ....etc

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GLOBAL WARMING AND ISSUES


Global Warming will be the greatest environmental challenge in the 21st century

Global warming - effect on the climate of human activities, in particular the burning of fossil fuels (coals, oil and gases) and large-scale deforestation, which causes the emission of green house gases e.g. carbon di oxide, emission to the atmosphere.

The global temperature of earth’s atmosphere is raised due to increased inputs of carbon dioxide ....etc

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GLOBAL WARMING

INTRODUCTION:
Global warming is defined as the overall warming of the planet, based on average temperature over the entire surface.
Modern technology is based up on a number of manufacturing units exploiting the natural resources.
Due to rapid industrialization and fast population growth we are suffering from an unwanted danger of enviournment problem.
Science has given us atomic energy, comfortable communication systems etc.. for the betterment of the society but at the same time the life has b ....etc

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Please help me for presentation on this topic. ....etc

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Global Issues: Ozone Depletion, Global Warming and Acid Rain

Introduction

Air pollution is exerting increasing impact on the environment. Humans have been altering the chemistry of the atmosphere on a global scale. These changes may:
Modify the global climate
Threaten the health of human beings
Create many environmental problems such as
Acid rain
Depletion of ozone layer
Global warming
Seriously upset the global ecosystem

What is ozone depletion?

Ozone is a highly reactive gas comprising ....etc

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HI, DEAR SIR,

I WANT DETAIL AND PROJECT REPORT ON PEDAL POWER HACKSAW MACHINE..

OLS REPLY ASAP...

THNX IN ADVANCE..

REGARDS...! ....etc

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IGCC POWER PLANTS A new technology to answer global warming

INTRODUCTION
Developing cost-effective carbon capture technology is one of the most important environmental challenges facing the utility industry in the 21st century
.The process offers options to eliminate greenhouse gases, produce hydrogen and liquid fuels.
. The potential for carbon dioxide sequestration makes IGCC technology even more appealing and environmentally responsible. . A more complex, but even more economical option.
. In this techno ....etc

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