ब्रंटलैंड आयोग की रिपोर्ट ('अवर कॉमन फ्यूचर'), जिसने सतत विकास को परिभाषित किया, किस वर्ष में प्रकाशित हुई थी?

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: