Rawalpindi board English 9th Notes Chapter 11(Noise in the Environment) (Punjab) Matric (Science) Part -1 Grade 9 notes, Composition, Exercise, Summary, Mcqs, Online Test, Guess Papers, and Past Papers.
Rawalpindi board English 9th Notes Chapter 11 (Noise in the Environment)
Table of Contents
What kind of precautions may reduce noise coming from electronic devices?
Electronic devices are causing noise pollution to a great extent nowadays in city life. Therefore, precautionary measures should be taken at the individual, collective and governmental levels to reduce noise pollution. One of the best ways to control noise pollution from electronic devices is to put a ban on the use of generators in residential areas. Secondly, a law should be enforced which states that people living in a closely-knit environment should not watch T.V. or listen to music in a loud voice exceeding the permitted volume in decibels. At public places like hospitals, schools, offices, etc, it should be mandatory for everyone either to switch off their mobiles or put them on silent mode so as not to disturb others or create noise pollution. People should avoid the use of vacuum cleaners, juicers, blenders, etc. at their homes on daily basis.
Why is noise dangerous for human health?
Noise is dangerous for human health as it has a negative impact on human beings. Noise pollution produces illness such as aggression, irritation, hearing loss, restlessness, depression, and insomnia.
How is the use of technology causing noise pollution?
We are living in the world of technology, due to which we now exist in a “global village”. Undoubtedly, on one hand, technology has constructed our lives in a positive way. But on the other hand, the same as it can also be held responsible for the dreadful impact on the mental and physical health of mankind. One of the most significant drawbacks of excessive use of technology in our lives is the problem of noise pollution. Excessive use of mobiles, vehicles, construction work, and equipment, a large number of factories, watching T.V and listening to music on high volume, use of electronic generators, unwarranted honking of horns contribute truly to causing noise pollution in the environment.
How is construction work a cause of noise pollution?
Construction work is a cause of noise pollution as the machinery used for the construction work produces noise.
How is transport a source of noise pollution?
Transport is one of the major sources of noise pollution because of the annoying horns of the vehicles, and the transport and equipment at construction sites causing grilling and piercing sounds.
How do you define noise pollution?
Noise pollution can machinery as “the factors which generate noise in the environment and have an adverse impact on the lives and health of the residents.”
Comprehension – C
Q.1) In paragraphs 3, 4, 5, 6, and 7 the writer is describing the cause, effect, and solution of noise pollution. Identify and summarize these.
Noise pollution is one of the alarming issues of the present times. There are numerous factors which can easily be held responsible for creating noise pollution in the environment such as massive traffic flow (land and air), irresponsible attitude of residents while using electronic appliances, community’s expansion near airports and railway stations are a few of them. Construction work in urban areas is a building block in noise pollution.
Misuse of technology is also a cause of noise pollution. People do not bother to put their mobiles on silent mode at hospitals, schools, colleges etc. Some people are in a habit of listening to music or watching television at loud volume creating disturbance in the environment. The hazardous effects of noise pollution not only damage the environment but indicate obvious harmful signs on the residents’ health.
Some of the ailments caused by noise pollution include hypertension, aggression, increased levels of stress, hearing loss, depression, insomnia, anxiety, emotional stress etc. In order to overcome the issue of noise pollution, the government should take certain steps to ensure healthy environment for the citizens. e.g. smooth traffic flow, block noise emitting vehicles, use noise barriers etc.
Q.A) Write a paragraph on “Effects of Land Pollution on Human Health”
Answer: Land pollution is considered kinds of one of the disastrous forms of pollution that have adverse effects on the health of living beings. It can be defined as “the destruction of the earth’s surface by such activities of man that may exploit land resources.” Even knowing the harmful consequences of land pollution, we are not paying that much attention to the issue which is indeed required by us on an urgent basis to save the planet Earth and its residents.
Any sensible individual can simply correlate land pollution with human health. A list of syndromes is associated with the particular issue such as problems related to human respiratory system, it can be responsible for skin diseases, and it can be a great source of causing various kinds of cancers. The lethal resources that pollute the soil can get into the human body directly by coming into contact with the skin, breathing in polluted dust or particles, being washed into water resources like reservoirs and rivers and eating fruits and vegetables that have been grown in polluted soil.
All of us are aware of the reality that the damage being done to the motherland is irreversible but if we put our heartfelt efforts to show our reverence towards it, we should stop land pollution from our homes, this will definitely work on a large-scale saving of the earth.