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How did the Incas travel over steep slopes?
They had to travel around steep slopes to find flat land.
They leveled the slopes and then built highways over them
They built a system of bridges to cross over steeply sloped land.
They built steps into the sides of the slopes.

Respuesta :

Tuniss
They built a system of bridges to cross over steeply sloped land.
kaiya0302p112lf

I think the answer is They built a system of bridges to cross over steeply sloped land.

Hope this helps :)