What is the most effective way to demonstrate being prepared for an interview?

The forerunner to cell phones, pdas, and smartphones was

Which of the following is not a source of sustainable raw materials? a) coal mine b) flick of sheep c) cotton plantation d) line forest.

How to launch an app: steps to be successful? launching an app is a great idea, but it’s not that easy as we supposed to think. the majority of mobile applications don’t generate revenue because companies aren’t ready to be competitive. referring to our experience in successfully building and launching apps we hope to you omit these difficulties. we are going to talk about ideas, marketing, testing your product, its development, distribution and support. you will learn 8 product launch stages to succeed.