Though all ultimate frisbee versions must have the basic rules, they also have some flexibility to change how they are played.

in your own words, identify the two types of subordinate clauses used by the sentence above. in addition, explain the function each serves in the sentence by identifying the element being modified and/or the part of speech it performs.

The types of subordinate clause include adverbial clause--which modifies a verb, adjective and adverb; and adjective clause--which modifies a noun. Based on the given sentence above, the subordinate clause is this: Though all Ultimate Frisbee versions must have the basic rules. And this subordinate clause functions as an adverbial clause which modifies the verb "played". Hope this helps.

Maybe littering, cutting down trees and pollution