Answer: Possibly meaning sciene is a subject where you actually have to put in the work. You are doing stuff. Many stuff actually.
Explanation:
Answer:
I only know a few
1. aluminum
5.copper
4.zinc
2.sulphur ( specifically vulcanization of sulphur )
It relates to the meaning of the pores of skin because it lets in and out only certain things.
I hope this helps, Sweetie.