विश्व स्वास्थ्य संगठन के अनुसार दिन में कितनी ध्वनि होनी चाहिए?
Answers
Answered by
64
Answer:
55 डेसिबल ............
Answered by
1
Answer:
50 decimal.................mmm,,,,
Similar questions
English,
6 months ago
Social Sciences,
6 months ago
History,
6 months ago
Sociology,
11 months ago
Economy,
11 months ago
Environmental Sciences,
1 year ago
Computer Science,
1 year ago