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9th Grade River Systems Quizzes , Questions & Answers

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9th Grade

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Unit A-E A- Mix and Flow of Matter B- Cells and Systems C- Light and Optics D- Mechanical Systems E- Fresh and Salt Water Systems

Questions: 95 | Attempts: 7758 | Last updated: Jul 10, 2026

Sample Question
______________ are highly senitive to light, while ____________ detect colour.

Cones are highly sensitive to light, while rods detect colour.

Rods are highly sensitive to light, while cones detect colour.

9th Grade River Systems Quizzes , Questions & Answers

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