Loss of biodiversity , soil erosion , water pollution and etc ..
D. the United States and the Soviet Union
during which Allied troops halted the steady German push through Belgium and France that had proceeded over the first month of World War I—a conflict both sides had expected to be short and decisive turns longer and bloodier, as Allied and German forces begin digging the first trenches on the Western Front on September 15, 1914.
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Answer: Don't Listen to the other answers. The Washington Monument in D.C. is an Obelisk modeled after ancient Egyptian Monuments.
Explanation:
