What is the Business Cycle Dating Committee of the National Bureau of Economic Research (NBER)?

The paper should be well organized and should answer the following questions about Business Cycles:1.What is the Business Cycle Dating Committee of the National Bureau of Economic Research (NBER)? Who are they and what do they do? Hint: start with a brief summary of “what is the Business Cycle.”2.How does the NBER define and date recessions? What are the start and end dates (month & year) of the 2007-2009 recession in the U.S.? How long did it last?3.What are some important aspects and effects of the 2007-2009 recession?http://www.nber.org/cycles/main.html and more generally the website www.nber.org to do research for the paper.