The first blank would be strengthening and the second blank is weakening. Negative reinforcement can increase the child's behavior because your negative reinforcement conditions him that it is ok to do such thing. While positive punishment is disregarded when the person practices negative reinforcement,
If you're really an eligible woman and are searching for Mr. Right, then the chances are you will be impressed by a man's physical appearance - b.
All of the other answers in this question are highly doubtful. However, I'd like to mentiond this question is slightly sexist towards females.
Answer:
a free for all submarine war
Explanation:
where you shoot spears out the sub at the other subs last one to sink loses (hopefully not there lifes) but everyones required to wear scuba gear incase your sub starts flooding so you can safely escape.
Manors experienced labor shortages due to the high number of deaths from the Black Death. The Lords had to do the work themselves.
