In addition to the fact that the stars appear to move across the sky every night, their rising times
change throughout the course of the year. Stars
seen from one location during one time of year
may not be seen from that same location at a
different time of year.

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.

Which of the following statements about the migration of workers to other countries is false?

How many countries have portuguese as a national language?