Substance A does not have fixed melting and boiling points. Substance B has fixed melting and boiling points and cannot be broken down by chemical reactions. Substance C has fixed melting and boiling points and breaks down into simpler substances when heated. Identify which substance is: a, An element b, A compound c, A mixture.

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users