Q38.
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.
Answer
D
Explanation
Many nano particles are stable and hence have potential for accumulation. They can enter food chains because of their very small size and stability, and because of their stability they have the ability to generate free radicals and cause oxidative damage in cells.