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System software includes operating systems such as devise drivers, severs, windowing systems, and utilities. System software runs the hardware and computer

Urine test and Saliva test are conducted to know the presence of drug substances in body. These two tests have their own advantages and disadvantages.

As dying hair sometimes becomes a necessity, it also calls for some safety measures when applying it to your hair. Here are some of the important measures to consider if you’re frequent with hair dye....