What is an atomic theory? A. An idea about what atoms are like
B. A prediction about nuclear reactions
C. A theory about how atoms first came to be
D. A theory about gravity

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.

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

__can be defined as which velocity changes