According to the princible of cross-cutting relationships an intrusive rock body is
a. always made of the same materials as the rock around it
b. younger than the rocks it intrudes into
c. older than the rocks it intrudes into
d. deposited as sedimentary layers

The provisions of subpart d, of the hhs regulations, additional protections for children involved as subjects in research apply to: all research involving childrenall research that is > minimal riskall research funded by any federal agencyall research funded by hhs

Adolescents can display egocentrism when they become about changes in their lives.

True or false: the eastern roman empire lasted for 1,000 years longer than the western roman empire.