To make hot cocoa on the trip, you will need to boil water. Construct an explanation that describes how the lower air pressure in the mountains affects
this process.

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

i believe the answer is true.