America was named after<span> Amerigo Vespucchi</span>
Answer:The researcher does not control the assignment of participants to groups and therefore has a nonequivalent groups design.
Explanation: The research design described above is a Quasiexperimental research, which is very similar to an experimental research with one very noticeable difference. In a quasi experimental research, such as described above, groups employed are usually preexisting, meaning that the experimenter does not control or have any impact on assigning subjects into the different groups, The group design are used just as they have preexisted, The nonequivalence portrayed in the group design of quasi experiment usually result in low internal validity expected of an experimental research.
The water particles had no chemical change, they only changed form. This makes it a physical change.
