Answer:
C. To find out if the call of an animal is missing
Explanation:
The more scientists listen to these kinds of recordings, the more they notice when an expected call is missing.
I hope this helps you in any shape or form.
Tense tones are usually used.
Say d im pretty sure that is the answer if not soorry <span />
Dec. 3rd 2015.
That was 5 letters, am I right? Lol.
