1. the increase of the population. At present, the average population of the world is likely to rise. To add more population means required to use Natural resources in the life stages, with increasing (light terms, Suez 2546 (2003)) causes various results followed, including an increase in agricultural areas, eating until you are invading deforestation caused a loss of natural balance also needs other resources started more like mineral water. Air power from the past till today, found that most of the population increase rate. Each year, more important reason is that more resources are being used and, as a result, the number of. Existing resources are limited to reducing the number of posts quickly and resulted in shortages of resources and environmental pollution problems, according to.2. the expansion of the city. The expansion of the community or city can also cause changes in the natural environment, due to the expansion of rapid city will cause problems to a lack of planning, urban planning in advance. Page is causing the problem, as well as the expansion of the city. Typically the industry's expansion has occurred, and in the various stages of the factories if the lack of planning and control that will result in a very different environment.3. the use of modern technology. Modern technologies applied in agricultural production by using various chemicals, such as fertilizers and pesticides, causing residues of these substances in soil and may extend to a water source, and the source of any effect until the ecosystem including the accumulated in the food industry, fiber cables. Substances used in the manufacturing process and the substance resulting from the manufacturing process, such as mercury lead. Arsenic, etc. will be harmful to health, and steps to eliminate the residual part (Residuals) makes it more difficult, and there will be different effects on many subsequent.4. building construction. To create a dam reservoir road is considered to be the main cause of the large forest resources as well as make the destroyed land resources. Water animals, so further derivatives were affected accordingly. Make man into the remaining forest area is easier than ever before. Due to the convenient location The destruction has occurred continuously. When Woods, degraded or exhausted. Local wildlife habitat was destroyed, there is more opportunity. Certain types of animals for food is going through difficulties. Eventually extinct, etc.5. sports Most of the wildlife resources, such as fishing and bird shooting, hunting, etc. If I do the actual sports, there is no problem. The destruction of natural resources, but when is the race to make the statistics the number of fatal weapons and modern dimensions will be taken. Use even more. Wild animals that have come to be part of it or a part of the body to the food or supplies only. The rest will be left in the forest, which is an action that is not worth the loss of life and the genetic diversity of wildlife.6. the war Cause the stimulation of natural resources that are used a lot. Applying mineral resources used to manufacture weapons and tools, which finally was destroyed. Sometimes the need to accelerate drilling of crude oil in order to buy foreign currency and selling state-of-the-art weapons, effectively breaking up battle each other. The result of the war was the loss of both sides in human resources or resource. Others, such as bombing destroyed lives and human resources, which is a natural resource of oil wells destroyed in the year 1991. Fri. 2536 (1993) cause loss of resources that it takes millions of years to occur, is unfortunately also result in damage to the environment, almost all over the world.7. the ignorance or unwittingly หลาย ๆ ครั้งที่คนเราทำลายสิ่งแวดล้อมเพราะความไม่รู้ถึงสาเหตุและผลกระทบ ขาดข้อมูลความเข้าใจที่ถูกต้อง ทำให้เราเข้าถึง และสัมพันธ์กับสิ่งแวดล้อมแตกต่างกัน ในขณะที่นักอนุรักษ์นึกถึงสิ่งแวดล้อมในรูปของระบบนิเวศของธรรมชาติ ป่าไม้และสัตว์ป่า แต่ภาคอุตสาหกรรมกลับนึกถึงวัตถุดิบที่เป็นปัจจัยในการผลิตเป็นต้นทุนนัก เศรษฐศาสตร์ จะนึกถึงทรัพยากรที่ต้องใช้ให้คุ้มค่า ชาวนาจะนึกถึงฝน ภาคท่องเที่ยวนึกถึงเงิน การทำการเกษตรที่ไม่ถูกต้องของเกษตรกร ฯลฯ สังคมยังขาดความเข้าใจถึง สิ่งแวดล้อมในลักษณะรวมที่เป็นความสัมพันธ์ของสิ่งต่าง ๆ ที่เมื่อเกิดความเสียหายที่ใดที่หนึ่งก็จะมีผลกระทบแก่กันและ กันบางครั้งลืมไปว่า ความสนุกชั่วครู่ชั่วยามของตนเป็นสิ่งที่ทำลายความเป็นธรรมชาติและความงดงาม ของสถานที่
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