Question

in the blank space provided at the end of each sentence, type the letters identifying the type of subordinate clause. ADV= adverbial. ADJ=adjectival. N=noun.
11. although many tornadoes occur throughout the United States, they are quite rare west of the Rockies.
12. several Champion ice-hockey teams have come from Canada or ice-skating is a very popular sport.
13. I heard that trucks can no longer travel on Grove Street.
14. wrap that meat in foil before you put it in the freezer.
15. since I will have a test in Spanish, I went to the language lab.

Answer 1

11. ADV (Although many tornadoes occur throughout the United States is an adverbial subordinate clause because it functions as an adverb expressing concession.)

12. ADJ (This sentence contains two adjectival clauses coordinated with one another with the conjunction or.)

13. N (that trucks can no longer travel on Grove Street is a noun subordinate clause because it functions as a noun in this sentence and it is the object of the verb heard.)  

14. ADV (before you put it in the freezer is an adverbial subordinate clause, because it functions as an adverb, which expresses time.)

15. ADV (Since I will have a test in Spanish is an adverbial subordinate clause because it functions as an adverb expressing reason.)