Anthropologist Jason De León uses a four-field anthropological approach when studying the experiences of Mexican migrants attempting to cross the U. S. border. Identify the reasons he gives for his use of the four-field approach.

To combine his background in both ethnography and archeology to make a research study.

Explanation:

In his bid to study the experience of Mexican migrants attempting to cross U.S border, Joan De Leon used four field of anthropology to make the research

In his research work, titled The Land of Open Graves: Living and Dying on the Migrant Trail (University of California Press), which was published in 2015, he explained that, the reason for using four field of anthropology is to find the cultural background relationship, the linguistic aspects, the biological integration: forensic science, and as well the archeological endeavor that is involved.

In other words, Joan De Leon reason for using four field of anthropology for his research study, is to find, how undocumented migration is a global phenomenon, as it is not just a desert situation only, but stretches from North to South, involving all kinds of intellectual, methodical and political processes.

the first part is ocean

explanation:

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.