Answer: A "The Decrease in trade among societies
Explanation:
As cities grow, s does their impact on other societies. In order to grow more, cities need to trade materials they have abundance in for materials they don't
Plastic deformation occurs when pressure is applied to a substance and this results in a change of shape of the solid. This occurs to rocks when they undergo metamorphism by pressure. A metamorphic rock is formed by the transformation of preexisting solid rocks under the influence of temperature and pressure. Extreme pressure in metamorphism causes some rocks to be foliated or have a banded appearance. Granite undergoes metamorphism to form gniess.
