Anthropogenic modifications of the Earth system have significant impact on freshwater. Analyze the hydrologic cycle below and answer the questions for each area of interest.

a. [10 pts] Identify the anthropogenic modification indicated in A and explain how it disturbs blue water quantity and quality. Remember to define blue water in your answer. 

b. [5 pts] Identify the anthropogenic modification indicated in B and explain how it disturbs blue water quantity and green water quantity. Remember to distinguish blue and green water in your answer.