The clean water act would not regulate which of the following scenarios? (3 points)

a tanker that has run aground leaks petroleum into a bay.

an algal bloom appears in a pond surrounded by crop fields.

rusting pipes in an apartment contaminate tap water with copper.

effluent from a factory raises the water temperature in a river by 2°c.

sediment disturbed by swimmers in a lake makes the water increasingly turbid.

I don't think they would regulate the second scenario.

are you referring to matrix mathematics!

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.