Consider how lifestyle affects the use of and demand for fresh water. How are use and demand related to each other? Can you think of a feedback loop involved in this system?

An easy way to calculate the amount of energy available at each level is to what?

Which of the following is the source of energy for photosynthesis? a.) glucose b.) chlorophyll c.) carbon dioxide d.) sunlight

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.