\begin{flushleft}
  Text on line 1 \\
  Text on line 2 \\
  .
  .
  .
  \end{flushleft}

  The flushleft environment allows you to create a paragraph consisting
  of lines that are flushed left to the left-hand margin.  Each line
  must be terminated with a \\.

1  –  \raggedright

  This declaration corresponds to the flushleft environment.  This
  declaration can be used inside an environment such as quote or in a
  parbox.

  Unlike the flushleft environment, the \raggedright command does not
  start a new paragraph; it simply changes how LaTeX formats paragraph
  units.  To affect a paragraph unit's format, the scope of the
  declaration must contain the blank line or \end command (of an
  environment like quote) that ends the paragraph unit.