<span>A. figuring out what you will give up and what you will gain by hiring a new worker </span>
Indus Valley, Ancient Egypt, Yellow River Civ, and Central Europe I think.
Answer-Passed by Congress on January 31, 1865, and ratified on December 6, 1865, the 13th amendment abolished slavery in the United States and provides that "Neither slavery nor involuntary servitude, except as a punishment for crime whereof the party shall have been duly convicted, shall exist within the United States, or any place subject to their jurisdiction.".
Explanation:
Answer:
Explanation: yes they are
The burning of coal is the energy source which is most linked to global warming. Coal-burning power plants are still used in many countries to produce a grand majority of the electrical energy used, although it has been stated that this is one of the main reasons for global warming.