Description : Noise is measured in – (1) Watt (2) REM (3) Centigrade (4) Decibel
Last Answer : (4) Decibel Explanation: The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity) relative to a specified or implied reference level. A ratio in ... from their roosts in caves, attics, or trees at dusk and hunt for insects into the night.