noise pollution

Question 1

what is a noise?

Answer 1

unwanted sounds at wrong time and place

Question 2

what is noise pollution?

Answer 2

unwanted sound which leads to stress and further health hazards

Question 3

what are the sources of noise?

Answer 3

1- automobile 2- industries 3-trains 4-home appliances 5-traffic noise

Question 4

what is the property of noise?

Answer 4

noise is sound which has 2 properties
1- loudness
2- frequency

Question 5

the greater the amplitude, the greater the?

Answer 5

the greater the amplitude, the greater the loudness of the sound

Question 6

the greater the frequency, the greater the?

Answer 6

the greater the frequency, the greater the pitch of the sound

Question 7

what is the maximum daily exposure of sound?

Answer 7

up to 85 decibles

Question 8

what is the range of frequency in which humans can hear?

Answer 8

20 to 20k hertz

Question 9

what are the branches of noise exposure?

Answer 9

1- auditory
2- non-auditory

Question 10

define auditory and non-auditory

Answer 10

auditory: noise-induced hearing loss
non-auditory: does not cause hearing loss

Question 11

what are the auditory effects of noise exposure?

Answer 11

1- auditory fatigue
2- deafness

Question 12

at what decibels does auditory fatigue occur at?

Answer 12

90 decibels

Question 13

at what decibels does deafness occur at?

Answer 13

100 decibels

Question 14

what occurs at a decibel greater than 160?

Answer 14

the tympanic membrane[ ear drum] ruptures

Question 15

why does deafness occur at 100 decibels?

Answer 15

1- the hair cells in the ear change
2- the organ of corti is destroyed

Question 16

what is the organ of corti

Answer 16

an organ of the inner ear

Question 17

what are 4 non-auditory effects of noise exposure

Answer 17

1- annoyance
2- loss of efficiency
3- economic loss
4-interference

Question 18

describe the 4 non-auditory effects of noise exposure

Answer 18

1- annoyance- the loud sound is annoying
2- efficiency- distractions due to sound
3- economic loss- productivity decreases
4-interference- cant hear other people in convos

Question 19

what are the 5 physiological changes due to noise

Answer 19

1- Increase in heart rate
2- Increase in breathing
3- Increase in blood pressure
4- Increase in sweating
5- Increase in intracranial pressure:

Question 20

what is intracranial pressure?

Answer 20

the pressure exerted by fluids inside the skull and on the brain tissues

Question 21

how can noise pollution be controlled?

Answer 21

1-Better planning’s of city mind map: where to place railways, factories, etc.
2-Control of vehicles
3-Education
4-Legislation
5-Soundproof walls
6-Detachment of building: houses not stuck together