जब कोई बच्चा ईवीएस (EVS) की कक्षा में बहुत अधिक खोजी प्रश्न पूछता है, तब वह किस कौशल में सुधार नहीं कर रहा होता 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: