Answer:
The Louisiana State Government passed the Separate Car Act of 1890, which allowed all commuter trains to have separate train cars with equivalent amenities for black and white Americans.
Explanation:
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The popular method used by researchers in usability study is a method called a direct observation
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What is a direct observation?</h3>
A direct observation refers to a method of collecting data where the researcher watches the subject in his or her natural setting.
The direct observation is also called observational study
In conclusion, the popular method used by researchers in usability study is a method called a direct observation
Read more about direct observation
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The Ganges River flows into the see into the Bay of Bengal, where it separates into many smaller streams in the Ganges Delta.