We Can Be Sure the Particles in the Rings of Neptune

question 101

Multiple Choice

We can be sure the particles in the rings of Neptune are very small because

• A)the rings are faint in forward-scattered light.
• B)the rings are bright in forward-scattered light.
• C)only small particles are produced in comet impacts with larger moons.
• D)the magnetic field of Neptune would quickly force large particles out of the rings.
• E)the larger particles would be quickly destroyed by impacts with the shepherd satellites.

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