Why are rules important to consider during a scientific investigation? The rules prevent scientists from making errors.
The rules are set so that the same results can be achieved all the time.
By following rules, results gathered are considered reliable.
The rules promote better scientist.

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the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

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