Answer:
Mention the options please.
Explanation:
Answer:variable - interval
Explanation: In the this scenario, The humanities instructor is using a variable-interval schedule of reinforcement. The instructor used the word 'surprise' meaning the time and date of the test isn't fixed and the quizzes will come up at unpredictable time intervals. This kind of reinforcement results in a steady response rate as it keeps students on their toes simply due to the fact that they have no idea of when the quizzes are coming up.
There are multiple possible answers. One is that it's mouse droppings since mice like to eat it. Another is that it's bugs and this is dangerous since they can leave larva there. The third is that they are remaining residue traces from other types of oats that were ground together and in this case it is not that dangerous.
Answer: Writing/Mailing, Sign Language, Talking with your voice, Body language, and dreams, if you're including religion.
Explanation: Writing is a way of talking to other people, probably one of the most easiest ways to talk, sign language is language with your hands, talking with your voice is the easiest way of communication, body language is another way to communicate, and dreams for example "god" can tell you something in a dream if you believe in a religion.