Igneous Rocks with a Two-Stage Intrusive-Extrusive Origin Are Recognized by a Texture

question 18

Multiple Choice

Igneous rocks with a two-stage intrusive-extrusive origin are recognized by a texture which is ____.

• A) aphanitic
• B) porphyritic
• C) glassy
• D) phaneritic
• E) pyroclastic

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Definitions:

NaBr

Sodium bromide, a salt with various uses including in medicines, as a sedative, and in photographic processing.

React

To undergo a chemical change or transformation in response to another substance or condition.

Sodium Chloride

The chemical name for table salt, a compound with the formula NaCl, widely used as a condiment and preservative.

Sodium

A soft, silver-white, highly reactive metal belonging to the alkali metal series in the periodic table, denoted by the symbol Na.