The boundary between the United States and Canada is both linguistic and religious ethnic and religious geometric and religious geometric and physical ethnic and geometric

religious ethnic

Explanation:

The boundary between the U.S and Canada is bilingual that is fresh and English. The bilingual belt includes Ontario, Ottawa Montreal, ad new Brunswick. It is also home to religious ethnic like the Sikhs and tribals. They speak more than two languages, have multiple religions such as Christianity, Catholics, french, and Sikhism.

Answerwide-open;

Answer decreased soil salinity;