Answer the questions based on your observations during the experiment on volume. 1. Why did the water level change when you dropped the marbles in the water? 2. Which marble increased the water level the most? 3. Compare the volume of the two marbles.

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases.as altitude increases, air density increases.air pressure and density are lowest at sea level.denser air exerts more pressure than less dense air.

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)

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.