Which Statement About Streams and Rivers Is NOT True? Trick Question—All Are True

The question asks which statement is not true for both streams and rivers. The answer: none of the above—all listed statements are true for both.

Verifying Each Claim

• "They both flow downhill." True. Gravity drives all fluvial flow.
• "They both carry water." True. That's the definition. Rivers carry more volume.
• "They both can have rapids and waterfalls." True. Gradient, not size, creates rapids/falls. Small streams often have steeper gradients.
• "They both can be found in different parts of the world." True. Global distribution.

Actual Differences (Not in the List)

• Size/discharge: Rivers are larger; streams are smaller tributaries.
• Permanence: Rivers usually perennial; streams can be intermittent/ephemeral.
• Channel morphology: Rivers develop floodplains, meanders, braiding; steep streams are step-pool or cascade.
• Ecology: River continua concept — communities change predictably from headwater streams to large rivers.

Terminology Note

"Stream" is the generic hydrologic term for flowing water in a channel. "River" is a large stream. "Creek," "brook," "run," "kill," "bayou" are regional variants. No sharp size boundary exists.

So if a quiz asks which statement is false for both, and these four are the options—the question is flawed. All are true.