An important structural feature of Jupiter and Saturn, that is not found in Uranus and Neptune, is
A) a large core with a composition similar to a terrestrial planet.
B) a hydrosphere.
C) plate tectonics.
D) a thick layer of metallic hydrogen.
E) a thick layer of molecular hydrogen.

Question

Quizplus · Accepted Answer

A thick layer of metallic hydrogen is an important structural feature found in Jupiter and Saturn, but not in Uranus and Neptune. This layer is created by the immense pressure and temperature deep within the planets, which causes hydrogen gas to become electrically conductive and behave like a metal. This layer generates strong magnetic fields, which in the case of Jupiter, can produce intense radiation belts.

An Important Structural Feature of Jupiter and Saturn, That Is