Why Are Some of Saturn's Rings Diffuse

question 89

Multiple Choice

Why are some of Saturn's rings diffuse?

• A) Particles in diffuse rings collide infrequently, allowing them to maintain irregular orbits and spread out.
• B) Particles in diffuse rings are composed of transparent materials.
• C) Diffuse rings are made of methane, instead of water ice
• D) Diffuse rings are composed of charged particles, which are spread out by magnetic forces.
• E) Sunlight heats diffuse rings, causing the material to spread out.

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Definitions:

Epidural Space

The area between the dura mater and the vertebral wall, containing fat and small blood vessels, within the spine.

Dura Mater

The outermost, tough layer of the three meninges that cover the brain and spinal cord, providing protection.

Meninx

The enveloping membrane of the brain and spinal cord; includes dura mater, arachnoid, and pia mater.

Periosteum

Thick, double-layered connective tissue sheath covering the entire surface of a bone, except the articular surface, which is covered with cartilage.