The clean water act does not ensure high water quality throughout the nation because it does not

a. have a means of enforcement

b. apply to all states

c. address drinking water

d. address interstate navigation

The correct option is A.

The Clean Water Act was enacted in 1972 in the United States. The Act addressed the discharge of pollutants into water bodies. The principal goal of the Act is to restore and maintain the integrity of the water bodies in the nation. The Act was a federal law and it is administered together with the state governments. But the Act has not been able to ensure high quality of water throughout the nation because it lacks a mean of enforcement.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: