K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

24 tháng 4 2021

đề chi ta

 

24 tháng 4 2021

ý bạn là sao ạ?

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high...
Đọc tiếp

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.

1. What do people use to measure the loundness or volume of sounds ?

.............................................................................................................................................

2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?

..............................................................................................................................................

3. What can noise pollution also lead to ?

..............................................................................................................................................

4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?

..........................................

5. What can you do to help reduce the effects of noise pollution ?

1
21 tháng 1 2018

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.

1. What do people use to measure the loundness or volume of sounds ?

They use a unit called a decibel to measure the loundness or volume of sounds

2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?

Yes, it does

3. What can noise pollution also lead to ?

It can also lead to headaches and high blood pressure

4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?

No, it isn't

5. What can you do to help reduce the effects of noise pollution ?

I can wear earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels to help reduce the effects of noise pollution

3 tháng 2 2018

1)To save energy for today and for the future, I'll use the solar energy.Because that is a natural energy.We can also use the reusable shopping bag.

2) In my country,we've got solar energy,wind energy and water energy.

3) I would go to Korea,because it's a beautiful country.

4) I think I must go in the right side of the street.

5) I'll go to school by electric car.

7 tháng 8 2022

1. I would like visit english-speaking country most is America

2. My favorite thing in America: Here people are very friendly and there are many beautiful scenes here

3. If I have a chance to visit England, I will visit the Big Pen watch. I will take a lot of photos and eat the specialties here

4. Yes. Because if we learn in a good environment, we will be better and develop better

5. Some common disasters in vietnam are floods, storms, droughts, forest fires, 

6. Storms often occur in my country when there is heavy rain and the tide is unusually high

7. Some causes of natural disasters are: Human consciousness, natural changes, emissions from large greenhouses, 

8. We have to build solid houses, protect the environment, plant trees, 

9. We can donate clothes, books, money. Rebuild homes for flood victims,

21 tháng 1 2019

Tham khảo nè: Câu hỏi của TF - BOYS - Tiếng anh lớp 9 | Học trực tuyến