Brightness Variations of Jupiter's Moons as They Orbit the Planet

question 66

Multiple Choice

Brightness variations of Jupiter's moons as they orbit the planet indicate that the relation between the spin around their axes and their orbital motions is that these moons

• A) do not rotate at all while orbiting the planet.
• B) rotate exactly once per orbital period.
• C) rotate in a way that is controlled by the gravitational influence of the Sun, keeping one face toward the Sun to produce the observed brightness variations.
• D) rotate on their axes independently of their orbital motion.

---

Definitions:

Deep Third Degree

A severe burn classification indicating damage that extends through all skin layers and possibly into underlying tissues.

Acronym

A word formed from the first letters of each word in a sequence of words, used as a shorthand or abbreviation for the full term.

Burns

Injuries to tissues caused by heat, chemicals, electricity, sunlight, or radiation, categorized by the depth of injury: first, second, and third degree.

Snake Bite

An injury caused by the bite of a snake, often characterized by two puncture wounds and requiring immediate medical attention.