Is this sentence in active voice or passive voice?
Because of its vague resemblance to a bowl of popcorn, one area of Mount Everest is known as the Popcorn Field.
This sentence is in active voice.
This sentence is in active voice because the subject "one area of Mount Everest" is performing the action "is known" on the object "the Popcorn Field."
To determine whether the sentence is in active voice or passive voice, we need to identify the subject of the sentence and see if it performs the action or is acted upon.
In this sentence, the subject is "one area of Mount Everest." To determine whether it is active or passive, we need to look for the verb and check if it is in the active or passive form.
The verb in the sentence is "is known." In this case, "is known" is the passive form of the verb "know." This indicates that the subject, "one area of Mount Everest," is being acted upon and is not performing the action.
Therefore, the sentence is in passive voice.