Class 9 English Chapter 11 Question Answer

Noise in the Environment Lesson Class 9 English Chapter 11 Question Answer pdf download. 9th Class Uni 11 Noise in the Environment Simple answers of questions.

Noise in the Environment  Book Exercise Class 9 English Chapter 11 Question Answer Solved:

Question No.1 How do you define noise pollution?
Answer: Noise pollution disrupts the normal functioning of life with excessive or unwanted sound.

Question No.2 How is transport a source of noise pollution?
Answer: Vehicles, airplanes, and trains produce significant noise, contributing substantially to noise pollution.

Question No.3 How is construction work a cause of noise pollution?
Answer: The machinery and trAnswer:portation used in construction sites generate considerable noise pollution.

Question No.4 How is the use of technology causing noise pollution?
Answer: Careless use of technology like mobile phones, electricity generators, music systems, and TVs is a major cause of noise pollution.

Question No.5 Why is noise dangerous for human health?
Answer: Noise pollution can lead to issues such as aggression, hearing impairment, restlessness, depression, and insomnia, among others.

Question No.6 What kind of precautions may reduce noise coming from electronic devices?
Answer: Citizens need to cultivate better habits and civic awareness in the usage of electronic devices.


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From Lesson:

Question No.1 What is normal functioning and how is it disrupted?
Answer: Normal functioning refers to the daily routine of life, which is disrupted by noise pollution.

Question No.2 How does technology increase noise pollution? What are technology-based irritants?
Answer: Careless use of technological equipment contributes to noise pollution. Mobile phones, generators, TVs, and music systems are some of the technological sources of irritation.

Question No.3 What are the harmful effects of noise pollution on human health?
Answer:. Noise pollution can lead to problems such as aggression, hearing loss, restlessness, depression, and insomnia, among others.

Question No.4 How can we cope with the serious issue of noise pollution?
Answer: Raising awareness and fostering civic responsibility among citizens are crucial steps in addressing the significant issue of noise pollution.

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