Main reasons could be due to insecurity. Depression and/or anxiety is also a possibility as well. A way to help them and discourage the habit is to simply talk to them; Find out what's going on in their life or what they're going through.
It also could be ADHD - hyperactivity & short attention span - which also leads to many problems.
Hope this helps!
Answer:
I would say experience because of the definition of capacity.
Explanation:
Capacity means the ability to use and understand information to make a decision, and communicate any decision made.
Answer:
It's a Dependent Clause. Hope this helps.
