पर्यावरण अध्ययन (EVS) के सीखने को सुदृढ़ करने के लिए, मूल्यांकन का मुख्य ध्यान किस पर होना चाहिए?

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: