Q3. Wow, oh, ugh and hey are all examples of what? Prepositions Interjections Conjunctions Nouns

The correct answer is:**Interjections**Explanation: Words like "wow," "oh," "ugh," and "hey" are examples of **interjections**, which are words or phrases used to express strong emotions, reactions, or feelings. They often stand alone and are not grammatically connected to the rest of the sentence.