What did fertile soil mostly contribute to the Mesopotamians' trade with other civilizations? a surplus of food an abundance of trees materials for crafted goods supply of building materials

a. a surplus of food

Explanation: i took the unit test.

no

explanation:

since the earth is flattened at the poles and bulges at the equator, geodesy represents the figure of the earth as an oblate spheroid. the oblate spheroid, or oblate ellipsoid, is an ellipsoid of revolution obtained by rotating an ellipse about its shorter axis.