The nano particles of some chemical elements used the manufacture of virus
There is some concern regarding the nano particles of some chemical elements that are used by the industry in the manufacture of various Why?
- They can accumulate in the environment, and contaminate water and
- They can enter the food
- They can trigger the production of free
Select the correct answer using the code given below.
- 1 and 2 only
- 3 only
- 1 and 3 only
- I , 2 and 3