उपयोग में न आने वाले विद्युत उपकरणों को बंद करने से ऊर्जा संरक्षण में क्या योगदान मिलता है?

Prolonged occupational exposure to excessive noise from heavy machinery without hearing protection causes noise-induced hearing loss. Excess noise is categorized as a:

Long-term exposure to indoor air pollutants, such as smoke from burning biomass fuels, significantly increases the risk of developing chronic respiratory conditions like: