The 1974 Congressional Safe Drinking Water Act empowered Congress to protect groundwater in the United States. empowered the EPA to protect groundwater in the United States. gave Congress the authority to regulate water quality in navigable waterways. gave the EPA the authority to regulate water quality in navigable waterways.

empowered the EPA to protect groundwater in the United States.

Explanation:

The 1974 Congressional Safe Drinking Water Act was passed by the United States Congress. In the act, the U.S. EPA (the United States Environmental Protection Agency) is empowered to carry out certain responsibilities and duties. Among which is the establishment of"minimum standards for state programs to protect underground sources of drinking water from endangerment by underground injection of fluids."

Hence, the correct answer, in this case, is "empowered the EPA to protect groundwater in the United States."

here are some major conflicts i found. maybe pick one and do more research on it. (cause i ain't writing 6 paragraphs)

in 1877, the nez perce war took place.

1881 - president james garfield was assassinated.

1882 - the chinese exclusion act was passed.

1883 - a decision in the civil rights cases legalized racial segregation in the united states.

1887 - the dawes act was passed.

1893 - the panic of 1893 took place. (what a creative name)

and there are probably other topics you can find if you just search up "united states timeline," or "conflicts in the 19th century for america."

then once you find a topic you like find out how it affected the people of america and what not. (sorry if this feels a bit short changed, history was and never will be one of my strong topics)

b) the confederacy had to pay all union war expenses.