Question

In which sentence is the underlined phrase an adjective clause?

1. The platypus, **which is a mammal**, has a bill like a duck and feet like an otter.

2. **When explorers first sketched the platypus,** scientists thought the sketches were a hoax.

3. A male platypus can eject venom **when another animal disturbs it.**

Answer 1

Answer: Number 2

Explanation: The adjective clause always has to have a subject and verb ( an action )

and I almost forgot to mention it always has to start with ( that, when, where, who, whom, whose, which, and why. )