Technological improvements have changed economies of scale in both commercial and subsistence agriculture. A. Compare and contrast subsistence and commercial farming with regard to purpose, characteristics, and employment.
B. Describe two types of subsistence agriculture and identify geographic regions and climate zones where they are practiced.
C. Describe two types of commercial agriculture and identify geographic regions and climate zones where they are practiced.

they united the colonies in their fight against the british.

b.provides a written record of the transaction

nope.

explanation:

        i'm fairly sure that the correct answers are 2 and 3.

        i used both my knowledge of world history and the process of elimination to obtain these answers. option 1 cannot be a possible selection because the mandate of heaven belongs to ancient chinese philosophical belief. option 4 sounds like it would benefit the region than detriment it. however, both 2 and 3 explain a potential reason for what could have contributed to the fall of the roman empire.

      hope this ! if i were you, i'd get a second opinion, because i haven't taken this course for a year. best of luck!

***websites that me understand the curriculum better last year are and ***