Answer:
This is perfectly normal for about the first 2 to 6 years. By around the age of 2, the foreskin should start to separate naturally from the glans. The foreskin of some boys can take longer to separate, but this does not mean there's a problem – it'll just detach at a later stage.
Explanation:
If you are asking if its a physical or chemical change it would be physical.
Answer:
"Certification" is a voluntary process by which a nongovernmental agency grants a time-limited recognition to an individual after verifying that he or she has met predetermined and standardized criteria. To become certified, an individual must meet eligibility requirements and pass an assessment.
Explanation:
The definition above is applied for healthcare field.
We can find different contents for the definition of Certification in dictionaries.
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Hope this answer can help you. Have a nice day!