Which of the following statements is/are true with respect to School Based Assessment (SBA)? A. It is learner-centred. B. It is teacher-centred. C. It is diagnostic in nature. D. Its focus is primarily on the evaluation of achievement. Choose the correct option.

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: