A changing climate forced people to migrate from cold northern locations to more temperate regions.
negotiation of wages and other conditions of employment by an organized body of employees.
Species is a less specific level of Classification than domain.
I think that it was B: a written code of law.
Explanation:The USA Patriot Act is an acronym for Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism. The USA Patriot Act was passed by Congress as a response to the terrorist attacks of September 11, 2001
