combination of elements on the periodic table to create a substance. so I think I understand about this okay but I have a 98% on that type of subject
Neptune: its the 8th planet and since Pluto isn't a planet anymore Neptune is the farthest planet from the sun with a distance of around 2.8 billion miles (4.5 billion km) or (30.07 AU)
I think it’s 270.9. Hope this help
You add them and then subtract them
