Frederick Douglass
Please vote my answer branliest! Thanks.
Answer:
Aqueducts
Explanation:
First developed around 312 B.C., these engineering marvels used gravity to transport water along stone, lead and concrete pipelines and into city centers.
Answer:
Burning radioactive waste, have machines pick up waste in the ocean, growing more trees, etc.
Explanation:
Also using more natural resources can help as well.
I would think the author is speaking about an political event in which people vote.
Primay elections would be the answer.
