Which of the following statements is true?

the milky way galaxy does not move.
all galaxies are spiral in shape.
the hubble telescope has been used to study faraway stars and galaxies.
all of the above

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?

Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland

Monk's mound in cahokia is an enormous earthwork very near to the mississippi river. what do archaeologists believe it was used for?