Planting "noise buffers" composed of trees and shrubs can reduce noise by five to ten decibels for every 30m width of woodland, especially sharp tones, and this reduces noise to the human ear by approximately 50%. To achieve this effect, the species and the planting design must be chosen carefully
Trees not only absorb carbon dioxide, give shade, avoid soil erosion, but they also act as buffers and filter out the annoying urban noise. A U.S. Department of Energy study reports that trees and shrubs can reduce noise levels by 50 percent as perceived by the human ear.
Explanation:
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Answer:
Planting "noise buffers" composed of trees and shrubs can reduce noise by five to ten decibels for every 30m width of woodland, especially sharp tones, and this reduces noise to the human ear by approximately 50%. To achieve this effect, the species and the planting design must be chosen carefully
Explanation:
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Answer:
Trees not only absorb carbon dioxide, give shade, avoid soil erosion, but they also act as buffers and filter out the annoying urban noise. A U.S. Department of Energy study reports that trees and shrubs can reduce noise levels by 50 percent as perceived by the human ear.
Explanation:
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a. anorexia b. volume c. sound d. noxia