Katherine's opportunity cost of attending the lecture is: the transportation and time cost of getting to the lecture event itself plus the reduction in her physics exam grade by not studying tonight.
<u>Explanation</u>:
The opportunity cost is the "cost" lost by not enjoying the benefit associated with the chosen alternative choice. People usually make use of opportunities to make themselves better.
The opportunity cost can be explained as giving up of profit or value to achieve something else. Opportunity cost is the value of giving up the best thing whenever you make a decision. When Katherine decided to attend the lecture of her favorite author, she lost her time, transportation cost and even scored low grade in physics exam as didn’t study on exam night.
It is secondary reinforcement since it uses something to get someone to do something.
The similarity is that both are a Plateau: a vast area located relatively high, but which is rather even (this distinguishes it from a mountain range).
The differences are:
-while Atacama is barely populated, the Altiplato has a number of cities, such as Cuzco
-The Atacama receives less precipitation than Altiplato
I think the answer is productivity goals
