The item in the following list that is not a use for interior trim is _____
a. hiding joints at the intersection of floors, walls, ceilings, and different wall coverings
b. protecting vulnerable edges
c. enabling a door to swing freely in its frame
d. holding window sashes in place
c
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Plants require more ____________________ than any other mineral element
Fill in the blank(s) with the appropriate word(s).
Answer the following statement(s) true (T) or false (F)
1. The positively charged particle has been given the name proton; the negatively charged particle is called an electron. 2. The nucleus of the atom is the name given to the tightly packed, heavy central core where the protons of the atom are assembled. 3. The arrangement of electrons around the atom determines most of the physical and chemical properties and the behavior of an element. 4. Metals are fairly good conductors of electricity because they have many free electrons that can move from atom to atom. 5. The word ion refers to an electrically balanced atom.
Symptoms of a __________ indicate that refrigerant may need to be added to the system.
A. system overcharge B. system undercharge
Double-acting cylinders have the same piston area on both sides, so they can exert equal pressure in both directions.
Answer the following statement true (T) or false (F)