Trees muffle urban noises and abate noises from airports and freeways.
we can control noise by avoiding loudspeakers and loud noises
1) By growing more and more trees along the road. 2) By minimizing the use of loudspeakers and radios ect.
Resonance is the answer.
croak and ribbit
croak and ribbit
Trees, not only absorb carbon dioxide, provide shade, prevent erosion, but they can also help muffle noise. Think of trees as big, leafy, air-purifying, oxygen-producing, white noise machines. Acting as shields, trees reduce the intensity of the sound waves considerably and it is the sound produced by the wind passing through the leaves that really helps muffle noise. A properly-designed buffer of trees and shrubs can reduce noise by about five to ten decibels-or about 50 percent as perceived by the human ear, according to the USDA National Agroforestry Center. For maximum effect, experts suggest planting a variety of both hedges or shrubs and taller trees to create a wall of foliage from the ground up. Such examples as cottonwoods, poplar and aspen trees are especially good at noise reduction because their leaf-shapes produce a good, strong rustling sound.
Noise Control - 2003 is rated/received certificates of: UK:PG
Trees are sound barriers... Sound or noise travels in waves through the air... When the noise is travelling the tree sort of comes into its way n thus, it reduces and impedes the sound.. A well placed tree can reduce upto 40% of the noise..
1. Trees Produce Oxygen 2. Trees Clean the Soil 3. Trees Control Noise Pollution 4. Trees Slow Storm Water Runoff 5. Trees Are Carbon Sinks 6. Trees Clean the Air 7. Trees Shade and Cool 8. Trees Act as Windbreaks 9. Trees Fight Soil Erosion 10. Trees Increase Property Values
Cicadas
The noise control number refers to the maximum allowable noise level in a specific area or environment. It represents the decibel (dB) limit set by regulations or guidelines to control noise pollution and protect people from excessive noise. The specific noise control number can vary depending on the location and the purpose of the area (e.g., residential, industrial, commercial).
J. T. Shrader has written: 'Truck noise IV G' -- subject(s): Noise, Noise control, Trucks, Motors (Diesel) 'Truck noise, IV-A' -- subject(s): Noise, Noise control, Trucks