Answer:
An experiment
Explanation:
The investigation in which a hypothesis is scientifically tested is called hypothesis. In the experiment cause (Independent Variable) and the effect ( dependent variable) is measured and extraneous variables are controlled. The opinions and views of the researcher should not have any effect on the results of a study, it made the data less biased and more valid.
It was primarily that "Miners began searching for gold in Indian lands," that caused renewed fighting between Americans and western Indians during the 1860s, although basic issues of expanded white settlement played a role as well.
Answer is A) Having a goof education
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