Why is lack of oxygen dangerous for climbers?

As they go higher up, it is harder to breath. So you might need more oxygen. I believe you could pass out.

buying socks and buying shoes are independent events.

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.