1: seniors in high school because that is when everyone is wanting to be the most popular.
2: ????
3:???
Answer:
I think the answer is D
Explanation:
People now days want to go to college and get and education so this delays relationships/marriages.
Answer:
Mechanical barriers are devices that provide a physical barrier between the sperm and the egg. Examples of mechanical barriers include the male condom, female condom, diaphragm, cervical cap, and sponge. The condom is the only contraceptive method that helps prevent sexually transmitted infections (STIs).
Are effective for individualized training and for classroom training.
all of the other answer seem unnecessary!!
The children were more likely to show increases in aggressive behavior when aggressive behavior was rewarded.