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Search results 2431 - 2440 of 5332 matching essays
- 2431: Fluoride
- ... in plaque break down sugars and carbohydrates from the diet. Repeated acid attacks break down the tooth, which causes cavities. Fluoride also acts to repair areas in which acid attacks have already begun. The remineralization effect of fluoride is important because it reverses the early decay process as well as creating a tooth surface that is more resistant to decay. Community water fluoridation is the adjustment of the amount of the ...
- 2432: Environmental Pollution
- ... year. When these fuels burn they introduce smoke and other, less visible, by-products into the atmosphere. Although wind and rain occasionally wash away the smoke given off by power plants and automobiles, the cumulative effect of air pollution poses a grave threat to humans and the environment. A big example of smog is LA you can see the smog just hovering above the city. I don't think any human ...
- 2433: Deforestation
- Deforestation Table of Contents Introduction 1 Important Facts 1 Historical Background 1-2 Background Law 2 Causes of Deforestation 2 The Green House Effect 2-3 Reducing Deforestation 3 Case Studies 3-4 Pros and Cons 4-5 Conclusion 5 Bibliography 6 Ninety percent of our trees, 300 - 900 years old, have been cut down. The remaining 10% is ...
- 2434: Can We Say "NO" To Recycling
- ... affect children mentally and physically. In addition, carbon dioxide is considered one of the main reasons of global warming because the molecule itself captures heat an stores it in it thus creating the green house effect. Besides plastics are rather toxicating when burnt according to Plenum, Acrylic type plastics emit HCN gas, Bromine components that are added to plastics results in the emissionof HBr , which are all dangerous pollutants (157). Obviously ...
- 2435: Air Pollution
- ... and depends on all of its strands to maintain stableness. If the air is polluted it disrupts this web creating a total imbalance. This "total imbalance" would also occur if the water was polluted. In effect, when one part falls they all do. Believe me, "total imbalance" is not cool.
- 2436: Air Polution
- ... and absorb sunlight which reduces visibility. Particles also reduce visibility by attenuating the light from objects and illuminating the air causing the contrast between the objects and their backgrounds to reduce. Not only does it effect visibility, but it hastens the erosion of building materials and the corrosion of metals, interferes with the human respiratory system, and brings toxic materials into the body. The small particles cause chronic bronchitis, bronchial asthma ...
- 2437: Acid Rain
- ... to react in great quantities. However in the soil there is a great collection of sulphur to aid the reaction. When it joins the water the pH becomes much lower. This is the most deadly effect of acid rain on our water!!! The water itself does not contain enough sulphur to kill off it's population of fish and plants. But with the sulphur in the soil it does. CONCLUSION: Acid ...
- 2438: Acid Rain
- ... by acid rain is large parts of eastern North America, Scandinavia, and central Europe. In alot of places acid rain isn't a probelm because some soils can neutralize the acid and it doesn't effect the crops. Areas more sensitive to acid rain is in the western United States most of Washington all of Oregon, sectons of California and most of Idaho. Maine, New Hampshire, Vermont and a large section ...
- 2439: A Beginning and End
- ... change and occurence that takes place during each season is so important to the outcome of the next, because the seasons are all entwined. The activities which are common to each season have a profound effect on the cycle of plant and animal life. There is a reason for all seasons, two of which are spring with its new beginning and autumn with its incipient decline. Mother nature wakes after a ...
- 2440: Acid Rain
- ... to react in great quantities. However in the soil there is a great collection of sulphur to aid the reaction. When it joins the water the pH becomes much lower. This is the most deadly effect of acid rain on our water!!! The water itself does not contain enough sulphur to kill off it's population of fish and plants. But with the sulphur in the soil it does. CONCLUSION: Acid ...
Search results 2431 - 2440 of 5332 matching essays
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