What was a major competing theory in ancient greece for the atomic theory of matter?

A major competing theory in Ancient Greece for the atomic theory of matter by Leucippus is the essence theory of matter that was devised by Aristotle.

In Aristotle’s essence theory of matter, he speculated that the properties of all matter were given by a fundamental essence.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.