Answer:
There was plenty of good land available for farming.
Explanation:
Most likely because in poor, rural areas, public schools are scarce/ not easily available, and so sending a girl to school is not as prioritized as sending a boy to school, since a boy can start working and be a "breadwinner" for the family sooner than a girl.
The cultures that were mummifying people may have gotten supplies and had trade routes with Shang China.
