WWI implemented trench warfare. Instead of everyone standing in a line people got down in trenches and fought each other. They would stay in these trenches for extended periods of time. The trenches were usually dirty and crowded.
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B. as tombs for the most important Egyptians
Explanation:
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D. He was a very positive leader.
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From 1950 to 2010, the world population increased from 2.5 billion to 6.9 billion, or by 174%. The average annual rate of growth—1.7%—was much higher than in the U.S. In the future, the global population is expected to increase from 6.9 billion in 2010 to 9.6 billion in 2050, or by 38
We enter a new century, the conflict is changed from one side to tee other, or someone inside the events changes their point of view and changes the way they act.