A compound is composed of ________.

A. Atoms
B. Isotopes
C. Molecules
D. Elements


Answer: A

Environmental & Atmospheric Sciences

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This is NOT a variable gas:

A) water vapor. B) argon. C) ozone. D) carbon dioxide.

Environmental & Atmospheric Sciences

The piling up of air above a region is called thickening

a. true b. false

Environmental & Atmospheric Sciences

Facts about Turkey include

A) 25% of the population are Ethnic Turks. B) the Kurds are the most populous minority. C) Kurds currently possess the most fertile land in Turkey. D) 50% of the population are Ethnic Turks. E) Turks migrated to Turkey after the 17th century.

Environmental & Atmospheric Sciences

Ribosomes are made up of how many subunits?

A) 1 B) 2 C) 3 D) 4

Environmental & Atmospheric Sciences