Question

An important factor that brought changes to the hunter-gatherer way of life was that

there wasn’t enough rain for the crops they planted to grow.
illness reduced their numbers.
men began to outnumber women and the number of gatherers declined.
large prey animals were becoming extinct.

Answer 1

large prey animals were becoming extinct.

As big-game became scarce, hunter-gatherers could no longer rely primarily on hunting large animals. They increasingly gathered and managed plants, experimented with cultivation and domestication, and settled in permanent or semi-permanent communities — developments that led to agriculture and major changes in their way of life.