In a food chain consisting of grass, grasshopper, frog, and snake, if the grass is at the first trophic level, which organism will be at the third trophic level?

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: