Answer:
Religion in Mesopotamia was polytheistic, while today most of the religions today are monotheistic.
Explanation:
In Mesopotamia, like in the most of Ancient civilizations people were polytheistic, which meant that they believed in many gods.
For example, in Mesopotamia those were Marduk, Ishtar and many others.
On the other hand, most of modern religions are based on the teaching that there is only one God. This includes Christianity, Islam, Judaism...
