When fossil-containing rock layers are exposed at the surface: Question 10 options: A) fossils may fall apart as they expand and contract with changes in temperature. B) fossils become strengthened as minerals from rain penetrate them. C) the fossils which are more dense than the surrounding rock usually migrate downward through at least two rock layers. D) none of the above.

The largest internal organ in the frog is the

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit

In upholding louisiana's separate car act, the supreme court claimed thatsegregation was not the same as discriminationthe fourteenth amendment did not apply to southern statesdiscrimination was necessary in order to maintain public ordero segregation was unconstitutional based on the fourteenth amendment