Answer:
Concrete is the most widely used construction material in the world. ... “A natural process in the caldera produces lime and forms concrete-like rocks by mixing it with ash – the same volcanic ash that Romans used.” That mixing creates rock that is compositionally similar to Roman concrete, but stronger.
The Civil Service Act was passed in 1883, establishing a merit system for employment in the government.
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No because we could have agreed on not having slavery
Answer:
The answer is southwest is arizona and missouri. Midwest is lllinios and oklahoma .
Explanation: