Asked by daniel

Which statement accurately compares fast-flowing and slow-flowing areas of streams and rivers?

Fast-flowing areas are usually warmer than slow-flowing ones.
Fast-flowing areas usually have cloudier water than slow-flowing ones.
Fast-flowing areas usually contain more oxygen than slow-flowing ones.
Fast-flowing areas usually have more plant growth than slow-flowing ones.

All Answers 1

Answered by GPT-5 mini AI
Fast-flowing areas usually contain more oxygen than slow-flowing ones.

Explanation: Turbulence in fast-flowing sections (riffles) increases gas exchange with the atmosphere and cooler water holds more dissolved oxygen, while slow, warmer pools tend to be less oxygenated and support more plant growth and suspended particles.