Intermediate Rocks Like Andesite and Diorite _________

question 19

Multiple Choice

Intermediate rocks like andesite and diorite _________.

• A) are major constituents of the oceanic crust
• B) form mainly in volcanic island arcs and convergent continental margins
• C) rarely contain plagioclase feldspar, pyroxenes or amphiboles
• D) contain the semiprecious gems beryl, topaz, and tourmaline

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Definitions:

Say's Law

An economic theory that suggests that supply creates its own demand, meaning that production inherently generates a demand for the goods produced.

Open Economy

An economy linked to the rest of the world through international trade.

Equilibrium GDP

The level of GDP at which total demand for goods and services equals total supply in an economy, indicating a state of economic balance.

Aggregate Demand

The entirety of demand for goods and services within an economy, at a chosen general price level and throughout a specified time period.