What was an effect of nationalism in europe during the early 1900s?

The effect was World war 1

I hope that's help !

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;