Hannah is in middle school. Her father treats her to a chocolate sundae each time she brings home a straight-A report card. Hannah's Dad is providing reinforcement.

Hannah's dad is providing POSITIVE reinforcement.

Explanation: Positive reinforcement can be defined as the act of giving encouragement to a person who exhibits a particular behaviour with the result that such behaviour is repeated.

Positive reinforcement strengthens a behavior or certain response.

From the question, Hannah's dad provided positive reinforcement by treating her to a chocolate sundae each time she brings home a straight A report card. This is done solely to motivate Hannah and to increase chances of getting good grades.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

one way archaeology us understand the past is through the material objects it finds, allowing us to know what was being used, and when. for example a dig recently found a flute, believed to be the oldest musical instrument found to date.

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