Water Pollution Essay Example | Topics and Well Written Essays - 500 words

Water Pollution - Essay Example Over time the stream dried and it became a seasonal flowing river. The livestock waste was streamed into the Fork West making it extremely polluted making the vertebrates in the river to perish which in turn led to a decrease in fish population in the stream. This animal waste also led to algal bloom which worsens the conditions of waters in this river which later leads to death of fish due to lack of oxygen. The pesticides and insecticides used in the farms gets its way into the waters of river West Fork polluting its waters. The poor sewerage systems along the river make the river polluted and unhygienic therefore the water is not suitable for domestic use. As the towns grew and expanded this made pollution of this stream more severe and deadly to the life of the river. The sewage water was channeled to the stream with no concern of its effects. This made pollution more terrible to the marine life in the river at that point in time. The users of the river at the downstream were not taken into consideration. The situation of the stream became worse when the domestic waste came into contact with waste from the industries. This destroyed the natural environment which was a catchment area for this river and a source of living to many downstream. The clearing of the natural vegetation led to rapid surface runoff which further led to formation of ditches which never had the capacity of carrying the flow which was on increase. The development of ditches and trenches led to the destruction of water catchment areas which were formally of a quality nature. This pollution led to degradation of the water of this stream and lives of the people who live downstream .The people down the stream use the river both for domestic use and other farming activities. The water could therefore have negative effects on their health since it may lead to contamination of water and food. These conditions of the stream

Compare and contrast the biological processes underlying innate and Essay - 1

Compare and contrast the biological processes underlying innate and adaptive immunity - Essay Example However, it is notable that the reactions also differ with aspect to the response they facilitate, as well as, how they facilitate the same towards the pathogens (The Open University, 2006, p 137). Other differences of activity also major along the effect or cells and specificity of the varied classes of the microbes. Nonetheless, these immunity reactions remain key in facilitating health to the human body. The innate immunity is for the nonspecific defense mechanisms that react to the entry or appearance of the antigen to the body immediately or within hours. The components of the innate immunity reactions include the physical barriers such as the skin, the chemicals in the blood and the all immune system cells that engage the foreign cells in the body (The Open University, 2006, p 138). Thus, it is notable that the innate response activation is from the chemical properties of the antigens. The adaptive immunity, on the contrary, refers to all the antigen specific responses of the immune system. It entails a complex immune response reaction compared to the innate immunity. The adaptive immunity requires that the antigen be processed and recognized (The Open University, 2006, p 139). Once the antigen processing and recognition ends, then the system creates a new system of immune cells that specifically fit the antigen processed. The adaptive immunity entails a memory, which makes the r esponse possible in the future against the antigen or even more specific antigens. The adaptive immune system, is emergent from the existence of the pathogen. The illustration of the vaccine process is a good example of the adaptive immune system in action. The cells and proteins that are always present in the body and ready to mobilize and launch a defense against the microbes at the infection site constitute the innate immune systems. The innate immune system does have several core components making the entire defense army of the body. The