The answer is:
4. scissors
The correct spelling for the rest is:
1. deficency-deficiency
2. labratoey-laboratory
3.psychiatry-psychiatry
Answer:
Put simply a fullback is primarily a blocker and the half back is primarily ball carrier. The full back generally lines up in front of the half back in the I formation or offset to either side of the deeper half back.
Explanation:
I'm pretty sure it is 23 1/2 but just use Google to check it
One way would be by the body temperature. another would be by body decomposition.