“Ask not the cause why sullen spring” is from what literature period

the answer is camped

this is the sentence that best shows that fast food restaurants are designed for using unskilled labor. 

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.