What is excles Optional arguments are not required in a function?

How can extant features of a target environment be adapted for security reasons? Memory reference instruction? Is plasma display unit is an output device? Can mass and volume be measured using the process and instrument? Where can one find an index on CMD commands? What is a GUI and why is it so popular? How much does one cubic ft of sawdust weight? Is there any website with answer to A Guide to Managing and Maintaining your PC? What is the definition of accuracy in computer characteristics? How far can data travel over twisted pair cable without being amplified? Registry disabled by administrator? What city is halfway between north Webster Indiana and Mattawan Michigan? How many paragraph levels does PowerPoint 2007 allow? How do you access information on abuse? What is the difference between home expenses and home renovations? How an AWC works in tablet compression machine? How do you put webcam to iPad? What knowledge is 2-15-19? What is the purpose of the universal resources locator? What is underground storage leakages?