What are five primary signs of a chemical change

What type of electromagnetic radiation has a shorter wavelength than blue light

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)

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at