30. Describe alpha particles, beta particles, and gamma rays. Indicate how the atomic number and atomic mass number change when a radioisotope decays to produce alpha, beta, or gamma radiation. (6 points)
31. Explain the process of balancing nuclear equation. (2 points)

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

When the volume and number of particles of a gas are constant which of the following is also constant

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.