Sorry, but what kind of question is that? Could you expand your question more?
I am c. Shaun White.
I am from California and I competed for the US in Snowboarding the in the Winter Games and in Skateboarding in the Summer Games.
Egypt is often referred to as 'the gift of the nile' because it flourished and survived by the annual flooding of the Nile River which made the soil extremely fertile. The fertile soil allowed for the growing of crops and without this overflow, Egypt probably would not have survived.
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.