1. T - Moth balls undergo sublimation, meaning they change directly from solid to gas without becoming liquid first.2. F - Water droplets outside a cold glass are formed by condensation, not freezing. Water vapor in the air cools and turns into liquid droplets.3. F - Waste from used batteries is hazardous waste, not organic waste. Organic waste comes from living things like food scraps or plants.4. T - Air is a homogeneous mixture because its components (like oxygen, nitrogen, carbon dioxide) are evenly mixed and not visibly separate.5. T - Colloids are heterogeneous mixtures because the particles are dispersed but not completely dissolved, and they can scatter light (Tyndall effect).6. F - A carbonated drink is a homogeneous mixture because the dissolved gases and liquids are uniformly mixed.7. F - Distillation cannot separate water from oil because they have very different boiling points, but they do not mix well; separation by decantation or separation funnel is used instead.8. T - Filtration is used to separate a solid from a liquid by passing the mixture through a filter that traps solid particles.