Why was it necessary for Marshall to take the trouble to explain why navigation should be considered as part of commerce?

N/A

Explanation:

Please provide context

answer

the primary areas president johnson's great society addressed were poverty, civil rights, and health care.

explanation

the great society was a program in us which was under the president johnson lyndon .the main objective of this program was to eradicate poverty and eliminate racial discrimination. in order to implement this he set up aside funds which were sent to the communities which were struggling with poverty. these funds catered for illiteracy and unemployment.

explanation:

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