Because it has grown so vast that it was no longer feasible to govern all the provinces from the seat of Rome.
The answer is (3a+2b)(a-4c) that’s what I got when I put it in a math calculator
Answer:Low lands tend to be wet lands. Wet lands are the breeding grounds for thousands of kinds of insects which act as food for all kinds of birds and small mammals which in turn serve as food for larger birds and mammals. It's called "the food chain" and if lowlands are destroyed, several links in the food chain are destroyed -- eventually causing the entire chain, of which we are a part, to fail.
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The correct answer is letter D.
Explanation: The Reconstruction of the United States was a period of United States history that began after the end of the Civil War in 1865 and lasted until 1877.