Looks FRIENDSHIP is the answer
A staple for the learning But not yet learn-ed For all hungry minds Deserve to be fed I may save you time But I lack in nutrish' Leave me in my bag And you won't wash a dish What Am I?
I am a type of vehicle that has two wheels and is powered by humans. What am I? Hint 1: You can ride me for exercise. Hint 2: I am environment-friendly.