The name Chloe is of Greek origin. The meaning of Chloe is young green shoot, blooming. Chloe is generally used as a girl's name. It consists of 5 letters and 2 syllables and is pronounced Klo-ee.
To put it simply, a ballast is the functional heart of a fluorescent or HID light source. Just as a heart regulates blood flow to your body, a ballast ensures that a lamp stays lit by managing the distribution of energy throughout the fixture.
Chalk is a limestone deposit created as plankton (tiny marine organisms) concentrate calcium in their bodies while living, then leach the calcium out after they die and settle onto ocean floors; over millennia, large deposits are formed, and as the seas recede, chalks deposits remain.