Is A “the density of the ice decreased as it melted”
It will be Solvent the term that would describe the alcohol will be solvent.
You have to think about the fact that hot air is constantly being blown up elevating the balloon once that air is taken away it's up to the steering and the wind after that. I know that probably doesn't help did you want to know the science part?
Answer:
Elimination
Explanation:
Since they are removing water from the solution, it is called elimination.