I wanna say the answer is- B.
I might be wrong,so if I am,I'm sorry
B. The president.................
<span>if the fertilizer is the variable than its
a. Independent</span>
Answer:Cities were at the center of all early civilizations. People from surrounding areas came to cities to live, work, and trade. This meant that large populations of individuals who did not know each other lived and interacted with one another.
Explanation:
