Biochemical stress is another factor fire
In order to grow your cells need to expand and divide in order for your body to grow.
Answer:
zinc oxide is a pure substance
Narcotic drugs are analgesic that exert a depressing action on the central nervous system.
Hope this helps!
It is definitely not a primary source: this would be a book itself.
Now, is it a tertiary source? I don't think so: the author of the review should have read the book and should only be referring to this book in the review.
I think it's a secondary source.
