why do girls leave us some boys if the some boys try with all there might but i know boys leave yall to i just wanna know why (do you know why)

If the new moon happens on january 15th, what shape will it be on february 6th?

The three classes of rocks are sedimentary, metamorphic, and igneous. how are rocks classified into one of these three groups?

Suppose astronomers built a 140-meter telescope. how much greater would its light-collecting area be than that of the 10-meter keck telescope? express your answer using two sign