Here's a summary of the best responses for each of your questions based on the context provided:
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Proportional Symbol vs. Dot Density Map:
- A proportional symbol map would be better if the subject being studied had varying sizes and intensities.
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Usefulness of a Diagram for Navigation:
- This diagram would be useful for navigation because it shows accurate physical distances between locations.
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Satellite Imagery for Artificial Lights:
- This type of imagery would be useful in human geography for studying population density.
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Multiple Scales for Studying Flood Risk:
- A small-scale map would provide overall flood risk in different areas, while a large-scale map could show flood risk near transportation infrastructure.
These responses align with the principles of geography and mapping techniques discussed in the context.