The best representation of the relative percentages of freshwater resources found on Earth is:
A. Graph 1:
- Icecaps and Glaciers; less than 0.3%.
- Lakes, Swamps, and Rivers; 60.8%.
- Groundwater; 20.5%.
- Runoff; 18.4%.
This graph shows a more realistic representation of freshwater distribution, especially with a significant portion allocated to groundwater, which is typically around 30-35% of freshwater, and a notable percentage for lakes and rivers. Other graphs provide inaccurate distributions.