1. A [disk cleanup] utility searches for and removes unnecessary files.
2. [Back-up] - allows users to copy selected files or an entire hard disk to another storage medium.
3. [Firefox] is a web browser- a platform, which is used to browse the information via the internet.
Open your browser and click the 3 strip bar in the conner and then look toward the bottom and click settings and it will open a new browser and then you are going to look at the left side and you will see extension click it and there you go...
A primary key is the answer. =)
The Internet Protocol (IP) is the method or protocol by which data is sent from one computer to another on the Internet , so basically like sending a email to one another .
A) Records of the dates and quantities of refrigerant recovered and recycled are unnecessary
