About 13,000 years ago, more than three-fourths of the large Ice Age animals, including woolly mammoths, mastodons, saber-toothed tigers and giant bears, died out. Scientists have debated for years over the cause of the extinction, with both of the major hypotheses — human overhunting and climate change — insufficient to account for the mega die-off.
Answer
Creating original research
A primary source is preferable to a secondary source when creating original research.
The problem of how much power the federal government should have has been a problem in history for ages. This can be seen after the Revolutionary War with the Articles of Confederation. Many people were scared of the federal government obtaining power after the Revolutionary War, as a lot of people did not want to have what happened with Great Britain happen again.
Amendment X, or the Tenth Amendment, states that the "<em>powers not delegated to the United States by the Constitution, nor prohibited by it to the states, are reserved to the States respectively, or to the people</em>."
This statement limits the power of the federal government by granting all powers that are not already granted to the government to the citizens or the people. The federal government does not have all of the power to do everything and the power to do certain things are with the states and the people. This can be seen with local taxes, certain licenses, elections, and other things.
Okay, well a plow is used for farming. Basically the Sumerian plow is like a modern day tractor. If you have ever heard the term, "to plow the fields", you would know and immediately think of a tractor.
It helped bring the South back.
It ended the war.
IT FREED THE SLAVES
