Astronomy ! astronomers are getting information about dark energy from a)the existence of dark matter b)the number of stars in the sky c)the fact that gases are in galaxies d)the shape of galaxies in cluster galaxies

If one thinks illegal immigrants should become american citizens, should they become american citizens automatically or should there be a waiting period?

Was the battle of iwo jima over after us troops raised the flag on mt. suribachi?

Which of the following is not true about isaac stevens, the first territorial governor of washngton a he was friends with the president franklin pierce b he graduated first in his class at west point academy che served in the mexican-american war he reluctantly accepted the job as governor