They irrigated dry lands. hope it helps
Answer:
The primary purpose of the Supremacy Clause is It establishes that the federal constitution, and federal law generally, take precedence over state laws, and even state constitutions.
The phrase taxation without representation describes a populace that is required to pay taxes to a government authority without having any say in that government's policies. The term has its origin in a slogan of the American colonials against their British rulers: "Taxation without representation is tyranny.
Efficacy is getting matters. it's far the potential to produce a desired amount of the desired effect or fulfillment in attaining a given intention. efficiency is doing things in the maximum low-priced manner. it's far the ratio of the output to the inputs of any device (appropriate input to output ratio).
Efficacy and effectiveness are close enough which means that they're regularly used interchangeably in contexts. however, effectiveness is regularly extra especially used inside the context of the way something accomplishes an assignment while efficacy conveys the quantity to which something accomplishes its task in any respect.
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Im going with A but not sure