What is 0.00000005 in scientific notation, rounded to two significant figures?

What is i fracture in the crust called when land move up, down or sideways

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)

When a scientific theory has been tested and proved by the scientific community, it becomes a law