Your teacher drinks a glass of water in the front of the classroom and claims, “this water could have been frozen in a glacier on Greenland thousands of years ago.” write an argument to support this claim that water could have moved from a glacier on Greenland to a local Baltimore County Reservoir and into your school’s water fountain.  

my argument is that while the the glacier is Greenland is really cold it could still have melted whilst melting the water cycle is happening and over and over that water moves and moves then it gets in to the schools water fountain and the teacher drinks from that water

1. they vary with a higher number because boiling is way hotter than melting

the answer is na (sodium)