This is a physical change because cutting the string didn't change it chemically, but it did physically.
Answer:
In a way that is suitable or right for a particular situation or occasion: She didn't think we were appropriately dressed for a wedding. Business leaders who acted appropriately were widely praised. See. appropriate.
<span>The air sealed between two panes of glass in some windows helps to </span><span>insulate and helps it to keep the warmth or coolness inside.
Hope that helps!
-Chris</span>