What does "Ecco la primavera" mean?

In two to four paragraphs, explain what happened musically as britten introduced the orchestral instruments. include a discussion of: -the order in which the instruments introduced the theme, as heard in the first 2: 00 minutes of the piece. -why the composer might have chosen to use different sections of the orchestra to play at different times. -how this piece you gain a better understanding of the orchestra. don't need all of it answered just need something to put down,

What should i say so i can switch my instrument

This is a type of government in which a group of individual states are united under astrong, central government.