King lalibela from the zagwe dynasty, who came to power in the 1200s and ordered the construction of eleven stone christian churches, ruled which civilization?

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!

Your family is planning a cruise vacation to the caribbean. you were planning on going in july, but you heard july is hurricane season.why do you think there are more hurricanes during the summer? when would be a safer time to visit?

The appalachian mountains rise to heights of about feet. 2,000 2,500 3,000 3,500