5. Why would Mesopotamian city-states be conquered in ancient times?

Mesopotamia is a region of southwest Asia in the Tigris and Euphrates river system that benefited from the area’s climate and geography to host the beginnings of human civilization. Its history is marked by many important inventions that changed the world, including the concept of time, math, the wheel, sailboats, maps and writing. Mesopotamia is also defined by a changing succession of ruling bodies from different areas and cities that seized control over a period of thousands of years.

Explanation:

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering