Two Competing Models of the Formation of Giant Gaseous Planets

question 96

Multiple Choice

Two competing models of the formation of giant gaseous planets suggest they form either from gas accreting onto a rocky core or from

• A) fragmentation of the accretion disk that surrounds the protostar.
• B) the merger of two large planetesimals.
• C) planets stolen from another nearby protostar.
• D) materials condensing out of the solar wind.
• E) an eruption of material from the protostar.

---

Definitions:

Sodium Ions

Positively charged atomic particles of sodium, essential in the body for maintaining blood pressure and fluid balance, and facilitating nerve and muscle functions.

Axon

A neuron, or nerve cell, features a long, slender outgrowth which is primarily involved in sending electrical messages away from the neuron's main body.

Action Potential

A temporary reversal of electrical polarization of the membrane of a nerve cell or muscle cell, allowing for the transmission of signals.

Electrical Conduction

The movement of electrically charged particles through a transmission medium.