After muhammad's death, Muslim leaders spread Islam by: A. forcing christmas and jews to change their religion. B. refusing to trade with any country not led by muslims C. uniting the competing sunni and shiite tribes. D. using a powerful military to conqeur new territories.

D

Explanation:

Soon after the death of the prophet Muhammad, there were military expeditions, called "futuhat," or literally "openings," into what is now Egypt and other parts of North Africa.

the answer would be c. sediment buildup on continental slope

                                                                                -hope this -

well it depends i think people around the world are coming around to gay marriage. but if you are talking abortion then wow, so much to talk about. such as men thinking they have the right to choose if women can, the fact there are health concerns if the women can't get one, and many more arguments to discuss. so i would definitely say abortion would be a much more interesting topic.