Final answer:
Mezhirich is located in Ukraine and dates back to approximately 15,000 - 10,000 BCE during the Mesolithic Age, a period of transition between hunter-gatherer lifestyles and settled agricultural societies. The correct option is 1.
Step-by-step explanation:
The location and time period of Mezhirich is Mezhirich, Ukraine, ca. 15,000 - 10,000 BCE. Mezhirich is an archaeological site known for its well-preserved mammoth bone dwellings and is situated in the context of the Mesolithic Age.
This time period, which falls between the Paleolithic and Neolithic ages, saw significant changes in human lifestyle due to the end of the last Ice Age.
The hunting-gathering societies during this time began to explore more settled ways of life, preluding the advent of agriculture.The correct option is 1.