Where is most freshwater on Earth?

Which describes the hydrosphere?

Which condition in the ocean is most responsible for an increase in the fish population near the surface?

Which pair of organisms represents a connection between aquatic and terrestrial food webs?

Which tool is used to determine precipitation amounts?

What percentage of water on Earth is saltwater?

What percentage of water on Earth is fresh water?

If a sewer pipe is leaking from an apartment building into a river, what kind of pollution is it?

Nitrate pollution can come from animal wastes and

Which form of water has the highest density?

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