what did fertile soil mostly contribute to the mesopotamia trade with other civilization?A. a surplus of food B. an abundance of trees C. materials for crafted goods D. Supply of building materials.

 A. a surplus of food

Explanation: I choose this answer because majority of the mesopotamia trade with other civilizations if it wasn't jewelry it was food such as grains,cooking oils, etc

moves its body by bending from side to side. hope this

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !