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:
its biological unless it trans gender which is pretty rare but that means your both but that's genetic
This is called Coastal Erosion and it is a combination of wind, tides, waves action on the shoreline. Beach ecosystem is constantly changing due to these circumstances and that is why these regions need special protection. In the US, Pacific coast of North West is a great example of this phenomenon.
Answer:
Hard Surfaces
Explanation:
Soft surfaces will absorb sound while hard surfaces will reflect it.
