In planetary science, the solar system is broadly divided into inner terrestrial planets and outer Jovian planets based on their distinct physical and dynamic properties. Which of the following statements most accurately contrasts the density, structural composition, and rotational characteristics of these two planetary groups?
- Terrestrial planets are high-density bodies composed of rock and metal with relatively slow rotation rates, whereas Jovian planets are low-density, massive bodies of gases and ices that exhibit rapid rotation.Cevap
- BJovian planets possess significantly higher average densities than terrestrial planets because their immense gravitational fields compress their thick gaseous envelopes into hyper-dense solid mantles.
- CTerrestrial planets have much faster rotation rates and thicker atmospheres than Jovian planets, which allows the inner planets to generate substantially stronger global magnetic fields.
- DBoth planetary groups have the same overall average densities, but Jovian planets appear significantly larger solely because their vast distance from the Sun prevents their thick atmospheric layers from evaporating into space.
Cevap
Terrestrial planets are high-density bodies composed of rock and metal with relatively slow rotation rates, whereas Jovian planets are low-density, massive bodies of gases and ices that exhibit rapid rotation.
The correct answer accurately synthesizes the core differences in planetary formation: the inner solar system's heat allowed only dense, refractory materials (rock and metal) to condense, forming small, dense, slow-rotating terrestrial planets. In the colder outer solar system, massive amounts of lighter gases and ices could accumulate, forming massive, rapidly rotating Jovian planets that have much lower average densities.
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Anahtar Kavram
The fundamental physical and dynamic differences between Terrestrial (inner) and Jovian (outer) planets.