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C. The Declaration of Independence
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I calculated it logically
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Scientists believe planets begin to form when a dense cloud of dust and gas, called a nebula, spins around a newly formed star. Gradually, gravity causes the bits of matter in the nebula to clump together. Slowly, these clumps accumulate and grow. Eventually, these clumps become planets.
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New manufacturing methods and new technologies
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Hope this helps :)
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Perhaps you could look to some wars online? Research is important. You could do the Cold War, or World War I/II, or the Great Depression. Just some tips. :)
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