Posted: 12/06/2013 9:38 am EST Updated: 12/06/2013 5:12 pm EST. WASHINGTON -- The good news that the U.S. unemployment rate fell to 7 percent in November could be bad news for more than a million of the long-term unemployed whose federal benefits are scheduled to expire at the end of the month.ut the declining unemployment rate masks a lot of bad news in the Bureau of Labor Statistics employment data. There are still more people than ever who have been unemployed six months or longer.
Definition of GREENHOUSE GAS. : any of various gaseous compounds (such as carbon dioxide) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect.ADVERTISEMENT. any of various gaseous compounds (such as carbon dioxide) that absorb infrared radiation, trap heat in the atmosphere, and contribute to the greenhouse effect.
In chemistry, a mixture is a substance containing two or more elements or compounds that are not covalently bound to each other and which retain their own chemical and physical identities; â a substance which has two or more constituent physical substances.n chemistry, a homogeneous suspension of material means that when dividing the volume in half, the same amount of material is suspended in both halves of the substance. However, it might be possible to see the particles under a microscope. An example of a homogeneous mixture is air.