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state two effects each of the following agricultural activities on the ecosystem one bush burning two fertilizer application three uses of pesticides?
Pollution from fertilizers occurs when these are applied more heavily than crops can absorb or when they are washed or blown off the soil surface before they can be incorporated. [ Excess nitrogen and phosphates can leach into ground-water or run off into waterwaysPesticide use has increased considerably over the past 35 years, with recent growth rates of 4 to 5.4 percent in some regions. The 1990s showed signs of declining use of insecticides, both in developed countries such as France, Germany and the United Kingdom and in a few developing countries, such as India. In contrast, herbicide
use continued to rise in most countries. ush burning, whether the result of a wildfire or a controlled burn, affects not only the appearance of the landscape, but the quality of the soil. The landscape may quickly recover after a fire, with fresh new growth and emerging seedlings. However, bush burning has a negative effect on soil conditions, and soil may take much longer to recover, according to the National Resources Conservation Read more: The Effects of Bush Burning on Soil Conditions | eHow.com ]
Expert answered|selymi|Points 10056|
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Asked 2/9/2013 5:32:25 AM
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