General Knowledge P L U S Posts - TopicsExpress

4 K 4K is a display standard that includes televisions,
4 K 4K is a display standard that includes televisions, monitors , and other video equipment that supports a horizontal resolution of roughly 4,000 p...

Concentration The amount of one substance dissolved or contained
Concentration The amount of one substance dissolved or contained in a given amount of another substance or medium. For example, sea water has a higher...