<span>the Missouri compromise </span>
Answer:
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Explanation:
Countries trade<span> with each other when, on their own, they do not have the resources, or capacity to satisfy their own needs and wants. By developing and exploiting their domestic scarce resources, </span>countries<span> can produce a surplus, and </span>trade<span> this for the resources they need.</span>
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.
