Let's complete the analogies:
-
Response area : floods :: Response area : destruction
Answer: damage (floods cause damage, and destruction also implies harm). -
wall : Response area :: trunk : tree
Answer: bark (just as a wall is part of a structure, the trunk is part of a tree, and bark is the outer layer of a tree's trunk). -
fly : soar :: sprint : Response area
Answer: run (to fly is to soar, and to sprint is to run).
So the completed analogies should look like this:
- floods : damage :: destruction
- wall : bark :: trunk : tree
- fly : soar :: sprint : run