Which is the dominant volcanic gas found in andesitic magma?

A. Carbon dioxide
B. Water
C. Oxygen
D. Hydrogen

Answer: B

Environmental & Atmospheric Sciences

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Sub-Saharan Africa is home to what percent of the global HIV/AIDS epidemic?

A) 25% B) 10% C) 5% D) 50% E) 70%

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The Indo-European family is divided into eight branches. Which of these is the largest of the eight branches?

A) Indo-Aryan B) Germanic C) Romance D) Balto-Slavic E) Celtic

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Studying microbes in extreme environments is tricky because when you retrieve the rocks they often

change what they are doing. Indicate whether the statement is true or false.

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The transport of sediment along the beach is due to: a. onshore transport

b. longshore currents. c. upshore transport. d. offshore currents.

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