Answer:
The Andes were formed by tectonic activity whereby earth is uplifted as one plate (oceanic crust) subducts under another plate (continental crust). ... When this large portion of dense material was removed, the remaining portion of the crust underwent rapid uplift.
Brian learns that nature can be cruel. He also learns to respect nature and to be aware of his surroundings. While the attack from the moose may have appeared random to Brian, he did learn that the moose provides a warning before attacking.
