2. All of the following were crucial to the emergence of the first cities EXCEPT
(A) an agricultural surplus
(B) a stratified social system
(C) labor specialization
(D) a system for food storage and distribution
(E) separation of the ruling system and the religious
system

Search it up or look it up on the dictionarysorry i wasn't any

Answer volcanic outgassing;

Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city.