Answer the following question in 3-4 complete sentences. What is a post-and-lintel system of construction? What problem can occur with a post-and-lintel system? Provide an example of an ancient structure that used a post-and-lintel system.

The post-and-lintel system is a simple method of construction involving the use of vertical and horizontal elements. The verticals support the horizontals, creating one story of a building. Additional verticals can be placed atop the horizontals to create structures with more than one level. The main problem that can occur with a post-and-lintel system is cause by the weight is unevenly distributed and the center is unsupported, which can cause sagging over time. Stonehenge is an example of an ancient structure that used a post-and-lintel system. i know this is more than three or four sentences sorry about that but here is what you needed to know

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