Think about some criteria that are important when developing a product such as toothpaste. What tradeoffs would you consider making to ensure that your most important criteria are met in your final design solution

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.