The answer is racial ....
I believe the answer would be C, burning fossil fuels. Oil and gas is made up of the remains of microscopic plankton. Over millions of years the remains become the carbon-rich coal, oil and gas we can use as fuel. When fossil fuels are burned they release carbon dioxide into the atmosphere, thus contributes to global warming.
To enforce and implement laws made by the Congress.
Answer:
A failure? Explain. Reconstruction was a success in that it restored the United States as a unified nation: by 1877, all of the former Confederate states had drafted new constitutions, acknowledged the Thirteenth, Fourteenth, and Fifteenth Amendments, and pledged their loyalty to the U.S. government.
Explanation:
stay safe
Signing or vetoing laws proposed by congress