Protoplanets of the Jovian Planets Could Have Grown Very Hot

question 43

Multiple Choice

Protoplanets of the Jovian planets could have grown very hot from

• A) heat for the sun.
• B) radioactivity of light elements such as hydrogen and helium.
• C) the infall of material at high velocity.
• D) tidal forces due to the sun.
• E) collisions with large planetesimals.

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Definitions:

Gabbro

A medium- to coarse-grained mafic igneous rock, the phaneritic equivalent of basalt.

Feldspar

Feldspar is a group of abundant rock-forming minerals that are major components of igneous, metamorphic, and sedimentary rocks, characterized by their silicate structure.

Quartz

A hard, crystalline mineral composed of silicon dioxide, widely distributed in many types of rocks and used in various industrial applications.

Granite

An igneous rock with a rough texture, primarily consisting of quartz, feldspar, and mica, often utilized in building projects.