According to Current Understanding, Which of the Following Is Required

question 30

Multiple Choice

According to current understanding, which of the following is required in order for a planet to have rings?

• A)The planet must be at least as massive as Saturn.
• B)The planet must once have had a large moon that came too close to it, shattering the moon and creating the ring particles.
• C)The planet must orbit its star at a distance greater than Mars orbits the Sun.
• D)The planet must have many small moons that orbit relatively close to the planet in its equatorial plane.

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Definitions:

Tidal Volume (TV)

Tidal Volume refers to the amount of air inhaled or exhaled during normal breathing.

Expiratory Reserve Volume (ERV)

The volume of air that can be forcefully exhaled after a normal tidal volume exhalation.

Inspiratory Reserve Volume (IRV)

The maximum amount of air that can be inhaled over the tidal volume, highlighting lung capacity beyond normal inhalation.

Residual Volume (RV)

The amount of air left in the lungs after a maximal exhalation, which cannot be voluntarily expelled.