What was the structural basis for the classical symphony?

The structural basis for the classical symphony is discussed below.

Explanation:

A symphony is a grand range musical activity designed to be performed in the performance arena. It is normally in four tendencies. The standard Classical style is 1st movement - (quick) in sonata form.The second is more gradual and more poetic; the third is a dynamic time (dance); and the fourth is a carefree finale.

These islands/chinampas then provided rich soil for crops with easy access to water. i hope this is correct, im so sorry if its not !