A Scientist mixes a solid powder into a beaker of fluid. Why might the mass be now less than the mass was before they were mixed together?
Would this be an example of a Physical or Chemical Reaction and why?

Select the atomic models that belong to the same element

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?

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