Question

b. How was the wheel invented?​

Answer 1

Answer:

The wheel was invented in the 4th century BC in Lower Mesopotamia(modern-day Iraq), where the Sumerian people inserted rotating axles into solid discs of wood. It was only in 2000 BC that the discs began to be hollowed out to make a lighter wheel. This innovation led to major advances in two main areas.

Answer 2

Answer:Sumerian people inserted rotating axles into solid discs of wood

Explanation:

MARK BRAINLIEST