Can somebody help me with my test?

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

Which element is the least metallic between cadmium, silver, zinc, or iron?

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas