Contiguous simply means touching or sharing a border, according to Merriam-Webster. When it comes to the United States, contiguous refers to all of the states that touch one another, without another country or a body of water coming between them. These are sometimes also referred to as the lower 48 states.
.apk extension stands for android package file. It is a file format used to distribute and install applications.It includes the programm codes ,assets ,resourses ,certificates and manifest file. .Dex extensions stands for Dalvix Executable files.
Answer: 'AFK' is 'Away from Keyboard'. AFK is used in live chatting to advise people that you will not be responding for the few minutes as you will be away from the computer. AFK is commonly used with a descriptor like afk bio (you are going to the washroom), or afk phone (you are answering a phone call). AFK is a very common expression. AFK can be used in both uppercase and lowercase form. Just remember: typing entire sentences in uppercase is considered rude shouting.