A verb in the indicative mood is a verb that states a fact or describes reality.
Looking at the provided sentences:
- Sentence 16 ("What types of animals do you see in the canyon?") contains an interrogative form, not indicative.
- Sentence 19 ("Other endangered and threatened canyon animals include Mexican spotted owls, spotted bats, desert tortoise, and bighorn sheep.") contains the verb "include," which is in the indicative mood.
- Sentence 2 ("Sound unreal?") is also interrogative.
- Sentence 22 ("If I had the chance, I'd go.") is conditional but not indicative.
Therefore, the correct answer is:
Sentence 19