What is a collection buttons that represent commands?

Why is sierra Nevada mountain range important to california? How a fuel injection system works and how an onn board computer works with the fuel injection system? How do you crack of astro Gemini screensaver? What reading level is rules? Can you save a glog off glogster onto a USB stick? What is considered an Environmental Threat? What is 6E15 in excel? Where can one purchase a collaborative learning? Where is the location of bar in casablanca? Explain the process of converting tree to a binary tree? Why wont my digital id match up with my i.p address to allow me to load .exe? How many cups of whole strawberries are in 16oz? How does a computer know when it needs a Microsoft update? Pseudocode to print your name hundred time? Address arthematic in C? How do you insert sheet In Excel? Why doesnt my microphone work on windows 8? What is A group of related fields such as all the demographic information for one customer? Is the ability of a processor to execute two instructions at the same time? Can you rent a movie on Netflix and then download it onto iTunes?