Density involves the amount of material in a certain volume. When a material changes phases, it changes in density in a predictable way as the amount of material stays the same but the molecules get farther apart or closer together. Water has solid and liquid states that do not follow these predictions of density in the phases of matter. What does that mean about the densities of the phases of water?

The solid-state is the densest, followed by the liquid state, then the gas state.
The solid-state is denser than the liquid state.
The liquid state is denser than the solid-state.
The gas state is the densest, followed by the liquid state, then the solid-state.

Afull irb committee meeting is convened and one agenda item is a new research proposal to evaluate how mothers interact with their learning-disabled child. the inclusion criteria require the children to be a minimum of five years of age. the protocol requires the mother of the child to look at the child without any expression and not to talk to the child for three minutes. the committee determined that the mother's required task may upset the child. the irb approved the study with appropriate language in the parental permission form regarding the possibility that children might become upset. after the start of the study, the principal investigator reports to the irb that, as expected, one of the children became upset. the incident was handled according to the protocol and the child is fine. what should the irb do with regard to this report?

Lots of points: economics: the is the dollar value of all final goods and services produced within a country’s borders within a given year. a. gross domestic product b. business cycle c. inflation rate d. net exports

Countries that are neither core nations nor peripheral nations