D. Siam remained independent because it negotiated unequal treaties with Europeans.
Answer:
Observations and experiments.
Explanation:
The scientific revolution was mostly revolved around nature and physics so we use observations for nature and experiments for physics!
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Answer:
Jacksonian democracy was a 19th-century political philosophy in the United States that expanded suffrage to most white men over the age of 21, and restructured a number of federal institutions.
Explanation: