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.
The last option d true love and class differences
some considerations you should have of your audience would be who your audience is, is it business is it a reunion, exc. you would adjust the content to your audience by making sure it is put in a way they will understand. especially if it is a persuasive speech you want to make them believe your point of view. if your audience was president of the college you would need to change your speech to be as professional as possible.
Answer:
well being a scientist is a great career to do.
as long as you want to do it im sure you can!
Explanation: