Amos has just received a good grade on his calculus exam. he's in a great mood, and thinks to himself, "school's going well; my relationship with carrie is going great. it's a wonderful world! " on the way out of the building, he finds that a bicyclist has hit a pedestrian, so he hurries over to the fallen person. this example best illustrates which of the three reasons why positive mood enhances ?

We are motivated to prolong our good moods, and helping does that.

Explanation:

When you feel good you always want it to last longer or forever if possible so you will do what ever else will keep you constantly happy just to maintain your good mood.

Amos for example is happy in school and in his relationship and ofcourse he would want to maintain that good mood and you know the relief and joy you feel after helping someone so to maintain his good mood he helps this pedestrian who has fallen down cause this would help him maintain his good mood.

answer; i believe that the correct answer is (decreased)

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.