Question

1. which development in human history first made waste disposal a problem?

○ decrease in birth rate
○ new diseases
○ growth of cities
○ increase in agriculture

Explanation:

As cities grew, human populations became concentrated in small areas. This led to large amounts of waste accumulating in a limited space, creating the first widespread waste disposal challenges, unlike dispersed agricultural societies or smaller groups where waste could be managed more naturally.

Answer:

growth of cities