Explain both how and why your choice varies by region, and how and why it has been affected by distance decay. Remember that geography, as an academic discipline, seeks to explain why things vary from place to place, not just describe how they do. For this project, you will assess three sources to include:

Geography by Geoffrey

Geography and Drinkable Water

Sources for the topic of drinkable Water and non drinkable water
Do research to see how each of the following geographic concepts affects or is related to your topic:

1. Regions

2. Cultural Landscape

3. Diffusion

4. Distance decay.
Explain both how and why your choice varies by region, and how and why it has been affected by distance decay. Remember that geography, as an academic discipline, seeks to explain why things vary from place to place, not just describe how they do.
For this project, you will assess three sources to include:

1) a complete citation for each source,

2) a summary of each source, and

3) an evaluation of each source.