When presidents go overseas to visit troops what presidential role are they fulfilling

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

you would times this by how many days there are in a year 365*400=$146000

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.

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explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long