What type of modifier the word in bracket is in the following sentence?

 “If we destroy trees (at random) one day the country will turn into a great desert.”

The word “at random” in the sentence functions as a prepositional phrase modifier. Specifically, it modifies the verb “destroy” by providing additional information about how or when the action occurs. In this case, the prepositional phrase “at random” describes the manner or timing of tree destruction