Answer:
In this way the spectroscope demonstrated that the gases in the Sun and stars are those of common elements such as hydrogen, helium, iron, and calcium, but at temperatures of several thousand degrees.
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Answer:
Explanation:
Washington argued that African Americans must concentrate on educating themselves, learning useful trades, and investing in their own businesses. Hard work, economic progress, and merit, he believed, would prove to whites the value of blacks to the American economy.
Answer:
it will test both
Explanation:
it will test both because you are going to use both of them in the experiment.
Answer: B) lack of effective and speedy transportation
Explanation:
Answer:
https://quizlet.com/66820051/mexican-american-war-flash-cards/
Explanation:
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