With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statements: 1. PFAS are found to be widespread in drinking water, food and food packaging materials. 2. PFAS are not easily degraded in the environment. 3. Persistent exposure to PFAS can lead to bioaccumulation in animal bodies. Which of the statements given above are correct?

All three statements about PFAS ("forever chemicals") are correct. PFAS are widely used in non-stick cookware, water-resistant fabrics, firefighting foams and food packaging, and they have been detected widely in drinking water, foodstuffs and packaging materials globally. They are called "forever chemicals" precisely because the strong carbon-fluorine bonds make them extremely resistant to environmental degradation, persisting for decades. Due to this persistence and lipophilicity, PFAS bioaccumulate in animal tissues and biomagnify through food chains, posing risks to wildlife and humans. Hence all three statements are correct.