The system is equipped with an ultraviolet lamp and a halogen lamp that produces near-infrared light.
VOA: special.2011.06.07
But cement manufacturing produces around five percent of the carbon dioxide released by human activity worldwide.
VOA: special.2009.12.01
The common or purple foxglove produces pretty flowers along a tall leafy stem called a spike.
VOA: special.2009.08.25
Alternate bearing is when a tree produces a heavy crop one year, called an "on-crop,"
VOA: special.2009.11.10
The gas is mainly methane. It produces half the carbon dioxide of other fossil fuels.
VOA: special.2009.10.23
America's National Cancer Institute says cooking meat at very high temperatures produces the most HCAs.
VOA: special.2010.06.01
But in Louisiana alone, the oil and gas industry produces seventy billion dollars each year.
VOA: special.2010.06.19
It is named the Buckeye State after a tree that produces nuts similar to chestnuts.
VOA: special.2009.08.23
Another symptom is a cough that produces yellow mucus and does not go away.
VOA: special.2010.06.23
The Center on Philanthropy at Indiana University produces a yearly report called "Giving USA."
VOA: special.2009.11.02
Type two diabetes results when the body cannot effectively use the sugar it produces.
VOA: special.2010.06.30
She writes and sings the songs and he plays guitar and produces them.
VOA: special.2010.05.07
Arthritis produces pain, swelling and limited movement in one or more joints.
VOA: special.2010.05.19
It controls the water of the Colorado River and produces electric power.
VOA: special.2009.03.04
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