The exchange of a good or service is a.
accommodation.
c.
urbanization.
b.
barter.
d.
division of labor.

Please select the best answer from the choices provided

Answer is Barter on edgen

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii