Answer:
Floor plan---> The view from the top of the building
Elevation----> The view of the front of the building
Cross-Section---> The view of the middle of the building
A short term environment change would be drought, smog, volcanic eruptions, and blizzards. All because it only last for a small period of time and it can affect the way certain species will have to adapt to certain environments.
It a b and c hope it helps you