There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 1. They can accumulate in the environment, and contaminate water and soil. 2. They can enter the food chains. 3. They can trigger the production of free radicals. Select the correct answer using the code given below.

The question raises concerns about the use of nanoparticles by industry. 1. Statement 1 is correct. Due to their small size and potential persistence, there is a concern that nanoparticles released from products can accumulate in the environment and potentially contaminate water and soil, posing risks to ecosystems. 2. Statement 2 is correct. If nanoparticles contaminate the environment, they can be ingested or absorbed by organisms at lower trophic levels. This allows them to potentially enter the food chains and biomagnify, posing risks to organisms higher up the chain, including humans. 3. Statement 3 is correct. Certain types of nanoparticles have shown the potential to interact with biological cells and trigger the production of free radicals (like reactive oxygen species). This can lead to oxidative stress, inflammation, and damage to cells and tissues, which is a significant health concern. Therefore, all three statements represent valid concerns associated with the use of nanoparticles.