NIOS Class 10 English Chapter 10 Question Answer
INTEXT QUESTIONS 10.1
I. Answer the following questions:
1. What is the difference between ‘sound’ and ‘noise’?
Ans: A sound which is not pleasant and agreeable to our ears is noise.
2. List out three examples each of sound and noise.
Ans: Suggested answers are birds chirping, soft music, soft laughter, etc., for sound and tyres screeching, music from loudspeakers, crackers, etc., as examples of noise.
3. What is the unit of measuring sound called?
Ans: A decibel
4. Up to what level is sound tolerable to the human ear?
Ans: Up to 75 decibels.
5. What are the sounds that you find intolerable and why?
Ans: Suggested responses: sounds of quarrelling, chalk against the blackboard, car horns because they are annoying, they cause headaches, they hurt my ears, they are loud.
II. Say whether the following statements are true or false.
a. Every sound is noise to human ears.
Ans: False
b. The sound made by a fire engine is noise.
Ans: True
c. Noise can be injurious to health.
Ans: True
d. Noise does not pollute the environment.
Ans: False
e. Noise below 145 decibels is safe for every human being.
Ans: False
III. Fill in the blanks in the following sentences:
a. The sound made during normal conversation measures ___ decibels.
Ans: a. 45-75 decibels
b. Beyond _____ decibels, noise can be painful to the ears.
Ans: 140
c. The screech of a car tyre is very _____ to the ears.
Ans: unpleasant/jarring
d. The method of measuring sound is _______.
Ans: scientific
e. In order to protect ourselves against _____ it is necessary to keep a check on noise.
Ans: hearing loss/deafness
LET US LEARN NEW WORDS 10.1
1. Find out some words from the dictionary which have the same meaning as noise.
Ans: Individual responses such as din, hubbub, row, tumult, clamour or other words associated with noise.
2. Given below are some words/phrases. Write ‘noise’ or ‘sound’ against each as the case may be.
a. screech of tyres
b. soft music
c. ticking of a clock
d. beating of drums in a marriage procession
e. normal speech
f. clap of thunder
g. sound made by a fire engine
Ans:
- a. screech of tyres – noiseÂ
- b. soft music – soundÂ
- c. ticking of a clock – soundÂ
- d. beating of drums in a marriage procession – noise
- e. normal speech – soundÂ
- f. clap of thunder – noiseÂ
- g. sound made by a fire engine – noise
3. There are many words in English that sound the same but are spelt differently. Such words are called ‘homophones’ (literally meaning the same sound). Example: tale, tail. mail, male, meat, meet. Fill in the blanks choosing the right word from the brackets:
a. We applied the _____ and the car stopped. (breaks/ brakes)
Ans: brakes
b. Sumeet danced with joy when he ____ that he had got a job. (heard/ herd)
Ans: heard
c. The window ____ were made of unbreakable glass. (pains/ panes)
Ans: panes
d. The dog chased the _______ of sheep. (herd/heard)
Ans: herd
e. Don’t keep the glass near the gas, it will _____. (brake/break)
Ans: break
f. He has a sharp ______ in his knee because of a fall. (pain/pane)
Ans: pain
g. I can’t _____ having cats in the house. ( bare/bear)
Ans: bear
h. Everyone must have at least the ____ necessities of life. (bare/bear)
Ans: bare
i. I check my _________ every day. ( mail/ male)
Ans: mail
j. The peacock is a _______________ bird. (mail/male)
Ans: male
INTEXT QUESTIONS 10.2
1. Write three bad effects of noise.
Ans:
- (a) causes headaches
- (b) causes deafness
- (c) causes danger to the heart and blood vessels
2. Was Naseer aware of the damage the noise caused? How do you know?
Ans: Naseer was not aware of the damage caused by noise; we know this because he always boasted that he could sleep even when there was the noise of traffic or television around him.
3. How did the noise affect Naseer?
Ans: Naseer had frequent headaches.
4. Why did Naseer often have headaches?
Ans: Naseer had headaches because he used to be exposed to noise even when he was sleeping.
5. What do you think Naseer should do to reduce his headaches?
Ans: Individual responses such as he could use earplugs, request his neighbours to reduce the volume of the television, move to a quieter locality, etc.
6. Why do blood vessels in the brain expand?
Ans: Blood vessels in the brain expand when we are exposed to noise.
LET US LEARN NEW WORDS 10.2
1. Find words from the passage which mean the following:
a. complete loss of hearing
Ans: deafness
b. risk
Ans: danger
c. pain in the head
Ans: headache
d. found
Ans: discovered
2. Fill in the blanks with appropriate words from the passage.
a. One should not ______ about one’s riches.
Ans: boast
b. Our blood vessels shrink in the winter and _____ in the summer.
Ans: expand
c. After a medical check up the school authorities ____ that most of the children had poor eyesight.
Ans: discovered
d. Whenever I go out in the hot sun I get a _______.
Ans: headache
INTEXT QUESTIONS 10.3
Answer the following:
1. How is the inner ear damaged?
Ans: When we are exposed to very loud noise.
2. What will happen if we ourselves start thinking about the harmful effects of noise?
Ans: We would stop creating unnecessary noise.
3. Why does the author advise people not to slam or throw books on a desk but put them down gently.
Ans: Unnecessary noise is generated.
4. List out the different gadgets you use at home. Which of these makes the most noise? How does its noise affect the members of your household?
Ans: Individual responses such as mixers, hair dryers, music systems, televisions, etc. The noise irritates the members of the household, who can’t study, and they ask us to switch it off, shut doors to keep out the noise, etc.
LET US LEARN NEW WORDS 10.3
1. Find words from the passage which are opposite in meaning to the following:
a. outer
b. harmless
c. noisier
Ans: a. inner b. harmful c. quieter
2. Form compound words taking one word from column A and one from column B. Look up the dictionary to find out if they are open, closed or hyphenated compound words and write them accordingly.
| A | B |
| a. identity b. time c. ice d. earth e. dry f. water g. high h. god i. black j. walking | proof cream quake table fearing stick clean card court board |
Ans:
- a. identity cardÂ
- b. timetableÂ
- c. ice creamÂ
- d. earthquakeÂ
- e. dry- cleanÂ
- f. water proofÂ
- g. High CourtÂ
- h. God- fearingÂ
- i. blackboardÂ
- j. walking stick
10.3 LET US LEARN GRAMMAR
2. Form questions beginning with’ Do’, ‘Is’ and ‘Can’ to which the following may be the answers.
a. Answer: Yes, noise can cause a lot of damage.
Question: Do you ———————————————————————?
Ans: Do you think noise can cause any damage?
b. Answer: No, loud noise is not at all good for health.
Question: Is ——————————————————————————?
Ans: Is loud noise good for health?
c. Answer: Yes, children can help to control noise pollution.
Question: Can —————————————————————————?
Ans: Can children help to control noise pollution?
TERMINAL QUESTIONS
1. What happens if somebody is exposed to loud noise for a long period?
Ans: Hearing loss.
2. In what way can school children help reduce noise pollution?
Ans: Suggested responses: by walking quietly, talking softly, and not burning crackers.
3. Do you know why we cover our ears when there is too much noise?
Ans: It is painful to our ears.
4. Can you guess how much the sound of thunder would measure in terms of decibels?
Ans: Suggested responses: 100-145 decibels.
5. List out noises that you find intolerable and give suggestions to reduce them.
Ans: Individual responses.
6. This Diwali, what is the best gift you can present yourself and to others to lead a healthy life?
Ans: No crackers. Intolerable noises are the sound of loudspeakers, car horns, and crackers. Avoid the use of loudspeakers, reduce their volume, follow regulations regarding silence zones, and stop bursting crackers.
Additional Study Materials
- Chapter 5: A Tiger Comes To Town (I) Textbook Solutions
- Chapter 6: A Tiger Comes To Town (II) Textbook Solutions
- Chapter 7: The Shoeshine Textbook Solutions
- Chapter 8: A Birthday Letter Textbook Solutions
- Chapter 9: Nine Gold Medals Textbook Solutions
