Environment & Ecology · Environment
लंबी अवधि तक किस शोर के स्तर के संपर्क में रहना सुनने की क्षमता के लिए खतरनाक माना जाता है?
- 110 dB
- 290 dB✓
- 350 dB
- 430 dB
सही उत्तर देखें
90 dB
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