Answer:
2
3:Well, the pyramids are hard to do, it takes a lot of time and back then they don't have tools like we do now so they use farmers and slaves to build the pyramids for the pharaoh when they die.
4:Egypt has multiple times where famine may come, so their fields of astronomy and mathematics help them calculate when to plant their harvest and then to collect them before drought or locusts come and wipe out the entire crop.
Explanation:
