Agree. Renewable sources produce low amounts of electricity.
Answer:
The economic concept of scarcity.
Explanation:
In economics, <em>scarcity</em><em> </em>represents the phenomenon of <em>limitless</em> <em>wants</em> suppressed by <em>limited</em><em> </em><em>resources</em>.
In this case, Allie feels she needs $90 shoes while she has not got the resources required to buy them.
This typical economic problem can be solved by moderating one's wants and clearly identifying what is priority from what is not, then intelligently making decisions on what available resources should be spent.
Eat while you work. Having a healthy snack while you complete your homework, such as fruits or vegetables, can actually sharpen your focus and improve your memory.
Reward yourself for each task accomplished.
Think of the free time you will have to enjoy once your homework is complete.