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.
Answer:
Heat energy.
Explanation:
Since the yogurt is frozen, the heat will cause it to melt.
The three estates, the way French society was divided in the late 18th century. Clergy, Nobility, and Commoners
Since you submitted a 'problem-and-solution' essay, this would fall under 'Editorial Section' where the opinions of writers are located. Your local newspaper would place your essay on the 'Editorial' section of the newspaper. I hope this helps.
