थीम आधारित दृष्टिकोण के अनुसार निम्नलिखित में से किसे पर्यावरण अध्ययन (EVS) के सीखने के लिए एक प्रभावी संसाधन माना जाता 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: