They have less-runny lava, meaning that it doesn't travel as far before cooling, meaning that the layers build up more steeply, but don't go out as far. You also get layers of ash on the composite volcano to help build it up too
1- The northern hemisphere is in either summer or spring, and the southern is in winter or fall.
The answer would be crystals
I am very confused? Would you mind telling me what it means so I can help