How did the addition of new land in the west cause tension in the north and south

they had opposing views as to whether or not slavery should be legal in the west. 

answer; when one group has an extremely high score at pretest;

it´s related to his charming character.

beauty is not everything, although we can joke that girls only care about the physical or material aspect, the truth is that a real woman looks at more important things, besides intelligence and personality, there are other attitudes that make irresistible to men who are 'unattractive'.

for example develop your sense of humor.