1. Increasing the number of the population
.The increase in demand in the use of natural resources. For basic living needs, including their land in agricultural increase rapidly.Utilization of other resources, such as water, air, minerals, energy source, which mainly is to meet the increasing current. Lack of planning to use them effectively.Until the decline of the environment more generally and may cause serious damage in the future. If it is destroyed or the use of resources. The natural recklessly next
.2. The gathering of population or human settlements
.The environment created by humans. And will cause a change of the natural environment, as well as the rapid expansion of the city.On the land use regulation pattern. Traffic problems, shortage of the utilities and services in general. As well as a recreation environment deterioration both physical society.Because the industry will benefit from the close to the city with a large, which means to have the market, transportation and basic services. The better city or smaller community.Thus the wastewater. Air pollution from industrial waste, release, which will cause the problem of ทั้งทางด้านกายภาพ and the health and sanitation. And the quality of life of the same population
.3. The use of modern technology in the production of agricultural
.The use of fertilizers and pesticides have caused the decline of quality of soil, soil pollution, problems which may spread spread into the stream. Until the cause of water or industrial production method using lead, mercury.Etc, these substances are toxic, serious health of the population. And difficult to solve or destroy the residues to put an end to it.And the actions of all people so in editing and planning in order to improve the quality of the environment
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