PRELIMS 2014 · SCIENCE & TECHNOLOGY

There is some concern regarding the nanoparticles of some chemical elements that are used…

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Question

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 food chains.
3. They can trigger the production of free radicals.

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