human they are able to multiply easily‚ which causes them to be at a great advantage and puts humans at a disadvantage. This helps them survive in the human body and causes a serious infection even with the arrival of a single protozoon. Infections caused by protozoa are contagious. Those protozoa that have inhabited the human intestine can be transmitted from one human to the other via the fecal-oral route‚ such as through sharing food the infected person has touched and through direct person to person
Premium Immune system Infection AIDS
Light Pollution 1. Every urbanite knows the bright lights of the city make it impossible to see the stars in a night sky. What most of us do not know is that those lights also may be making us sick. The cause is light pollution – the unearthly glow of billions of street lamps‚ security and porch lights‚ searchlights‚ office lights and signs – as people everywhere try to dispel the darkness of the night. 2. For the first time‚ light is being investigated seriously as a pollutant and a health hazard
Premium Light pollution Lighting Light
References: Ahmed‚ A. (2013‚ April 28). The National . Retrieved May 19‚ 2013‚ from The National : http://www.thenational.ae/news Badam‚ R Corder‚ R. (2008). Dubai ’s traffic pollution among world ’s worst. ARABIAN BUSINESS. Retrived May 21‚ 22013‚ from Arabian Business GulfTalent.com HOTZ‚ R. L. (2011). The Hidden Toll of Traffic Jams. THE WALLSTREET JOURNAL. Retrieved May 21‚ 2013‚ from The wall street journal Majaida‚ A Mohammad
Premium Abu Dhabi Rush hour
Environmental pollution in Dhaka city INTRODUCTION: Pollution is an undesirable change in the physical‚ chemical or biological characteristics of air‚ water‚ soil or food that can adversely affect the health‚ survival or activities of human or other living organisms. The effects of water pollution are far-reaching and affect not only the environment‚ but human beings and animals as well. The pollution in Dhaka has reached alarming levels‚ threatening public health‚ ecosystems and economic
Free Pollution Water pollution Water
Pollution is not a new phenomenon. In fact‚ pollution has been a problem since the appearance of our earliest ancestors. Increasing human population have opened the door to more bacteria and disease. During the Middle Ages‚ diseases such as cholera and typhoid fever broke out all across Europe. These epidemics were directly related to unsanitary conditions caused by human and animal wastes‚ and garbage. In 1347‚ the bacterium Yersinia pestis‚ carried by rats and spread by fleas‚ caused the "Black
Premium Pollution Environment Environmentalism
and goods from one location to another. Modes of transport include air‚rail‚ road‚ water‚ cable‚ pipeline‚ and space. The field can be divided into infrastructure‚ vehicles‚ and operations. Transport is important since it enables trade between people‚ which in turn establishes civilizations. Water transport: Water transport is the process of transport watercraft‚ such as a barge‚ boat‚ ship or sailboat over a body of water such as a sea‚ ocean‚ lake‚ ... One of benefits is that cost of its construction
Free Pollution Environmentalism
of purified water again. Due to the people of the United States drinking billions of gallons of water daily‚ the amount of purified water we drink is starting to run out which is causing a problem already. Psychological studies have shown humans still don’t accept water being reused even after knowing the water is purified and perfectly clean. Advocates are still against ultraviolet machines being used to clean and purify water. While some people believe that drinking recycled water is both repulsive
Premium Water Water quality Water supply
Deforestation Chlorophyll enriched buds sprouted up from the fallen branches. The massive roots extended great distances from the trunk. The aged monster towered some three hundred feet into sky Many of its kind came before. The first may have originated some 130 million years ago. (7‚ pg.37) It stood when dinosaurs roamed and reptiles flew. Its vastness was nearly enough to cover the globe. These Species could be found from France and England in Europe. In Japan‚ America‚ Canada‚ and central
Premium Forest Rainforest Deforestation
Atmospheric Pollution Yvonne Perry Everest Online Atmospheric Pollution There are both primary and secondary air pollutants. The primary pollutants “Are the direct products of combustion and evaporation‚” (Wright‚ 2011) and some can undergo further reactions in the atmosphere and causing secondary pollutants. The names of the primary pollutants are: Suspended particulate matter‚ volatile organic compounds‚ carbon monoxide‚ nitrogen oxides‚ sulfur dioxide‚ lead‚ air toxics‚ and radon. Suspended
Free Air pollution Oxygen Smog
great magnitude; one of them is pollution. Pakistan is one of the developing countries which are sustaining the pollution problem.Traffic congestion is one of the main causes of air pollution. The usage of old transports is ruining the situation. No prevailing laws are strictly implemented‚ as a result‚ factories exude their smoke into the air. Simultaneously‚ wasted poisonous substances are excreted in the water of rivers and lakes which is causing water pollution. The conditions exacerbate in the
Free Pollution Oxygen Causality