2011年8月28日星期日

What are the causes and effects of these environmental problems?

Like eutrophication,


deforestation,


acid precipitation,


destruction of coastal resources


and wildlife depletion





KINDLY GIVE ME OTHER ENVIRONMENTAL PROBLEMS


along with there causes and effects





please don't give me the link..summarize it for me please..i'll choose a best answer for the one who truly helped me..thanks|||eutrophication is when an excess of nitrogen (mainly from fertilizers and other pollutants) enters a waterway and causes a rapid growth in algae and other organisms that will eventually deplete the water body of oxygen. Results of this are massive fish kills as well as other organisms. Also, when this occurs it is a tough cycle to break because usually it will lead to more algae being produced.





Deforestation has natural and anthropogenic causes. Natural disasters like volcanoes (pyroclastic flows) or tsunamis can clear entire forests as can heavy winds or melting permafrost. Humans mainly clear trees to make way for buildings roads and other infrastructures. The effects of deforestation include habitat and species loss, extinctions of threatened and endgangered species, a risk of dropping air, soil and water quality, less buffer to climate change.....





Acid precipitation is caused by a complex chemical reaction that takes place in the atmosphere where sulfuric acid is actually produced. This then falls in diluted amounts on the land and can cause massive fish kills and other organism kills by lowering the pH of surrounding water and soil. Many plants are also affected by this. The sulfur enters the atmosphere through industrial pollution of sulfur aersols and through the burning of fossil fuels. This too can lower the biodiversity of an area and kill of several species....





Coastal resources are the most important areas on earth, from both an environmental and economical point of view, The destruction of the coast lines is caused by improper building practices that is putting too much develop too close to the water. This development is not only at high risk for damaging the ecosystem and being swept away in a storm, but it also is causing more problems by increasing, waste, pollution and cutting off natural processes of sand erosion and transport....the effects include the loss of a very specific habitat and a great risk of natural disasters because we build in more vulnerable areas.





wildlife depletion is cauased by too many thigns to name. There is definitely a natural loss of wildlife through back ground extinction and genetics, but also there is human caused loss. The main reason for this loss is because of habitat loss or degradation. Degradation is just when the habitat is damged in someway but not destroyed. It is a shame because there are so many species that we have not find nor have explored to see their role in medical uses or anything else, but we continue to kill their habitat. The effects of this are far reaching becasue we never know if we might kill off the wrong animal that will then have huge effects on the humans in the long run








hope this helps|||Cause - Humans


Effect - global destruction (that's all we know what to do)


sleep well

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