Composite Volcanoes Erupt Explosively

question 18

Multiple Choice

Composite volcanoes erupt explosively. What kind of magma do you conclude that composite volcanoes must contain?

• A)magma that is mostly liquid
• B)thick, sticky magma rich in solids and gas
• C)ancient magma
• D)magma made of cement

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Definitions:

Trial Balance

A bookkeeping report that lists the balances in each of a company's general ledger accounts in two columns, debits and credits, ensuring that total debits equal total credits.

Accounts Balances

The amounts in accounts that represent the difference between the debits and credits recorded.

Retrograde Pyelography

A radiologic procedure in which the doctor injects a contrast medium through a urethral catheter and takes a series of X-rays to evaluate the function of the ureters, bladder, and urethra.

Contrast Medium

A substance used in medical imaging to improve the visibility of internal body structures.