검색어: sound pollution details (영어 - 벵골어)

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sound pollution details

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শব্দ দূষণ বিবরণ

마지막 업데이트: 2018-04-12
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sound pollution

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শব্দ দূষণ

마지막 업데이트: 2017-02-15
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soil pollution details

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bengali

마지막 업데이트: 2019-02-08
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sound pollution bengali

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শব্দ দূষণ বাংলা

마지막 업데이트: 2018-10-07
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soil pollution details download

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মাটি দূষণ বিবরণ ডাউনলোড

마지막 업데이트: 2018-03-20
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soil pollution details in begali

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বাগানে মৃত্তিকা দূষণের বিবরণ

마지막 업데이트: 2018-02-17
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essay on sound pollution bengoli

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শব্দদূষণ বেঙ্গোলির প্রবন্ধ

마지막 업데이트: 2020-07-10
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essay on sound pollution what is this

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শব্দ দূষণ এই কি প্রবন্ধ

마지막 업데이트: 2022-06-22
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sound-pollution projectsound pollution project

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শব্দ দূষণ প্রকল্প শব্দ দূষণ প্রকল্প

마지막 업데이트: 2017-10-17
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영어

sound pollution is one of the most talked of topics. it is a great problem for our environment. according to the u.n the normal tolerance limit of sound is 45 decibels. when the vibration of sound is at a pleasant level, it is simply called sound. but when it is sharp and harsh to the ears, it becomes noise. serious harm can be caused to people if they are regularly exposed to sounds exceeding 70 decibels. there are many causes for sound pollution. the vehicles, the loud speakers, mills and fact

벵골어

শব্দদূষণ অন্যতম আলোচিত বিষয়। এটি আমাদের পরিবেশের জন্য একটি দুর্দান্ত সমস্যা। ইউএন অনুসারে শব্দটির স্বাভাবিক সহনশীলতা সীমা 45 ডেসিবেল। শব্দের কম্পন যখন মনোরম পর্যায়ে থাকে তখন এটিকে কেবল শব্দ বলা হয়। কিন্তু এটি কানের কাছে তীক্ষ্ণ এবং রূ is় হয়ে উঠলে তা শব্দ হয়। লোকেরা যদি নিয়মিতভাবে 70 ডেসিবেল এর বেশি শব্দগুলির সংস্পর্শে আসে তবে গুরুতর ক্ষতি হতে পারে। শব্দ দূষণের অনেক কারণ রয়েছে। যানবাহন, লাউড স্পিকার, কল এবং ঘটনা

마지막 업데이트: 2020-07-27
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