Deserts are characterized by
A. An absence of vegetation
B. Sand dunes, which cause plants to grow only with difficulty
C. Sand or gravel
D. Their location at 30° latitude
E. Low levels of measurable precipitation
Answer: E
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In your laboratory, you open a jar of a chemical that is known to have a very low LDL0. Therefore, your concerns about the safe handling of this chemical are primarily in regard to
A) acute toxic effects. B) chronic effects. C) immediate health effects. D) radioactive exposure.
Which of the following was not a legacy of Spanish rule in Latin America?
A. democratic governments B. a geographic system based on mineral exploitation and transportation to a few ports C. large estates engaged in raising livestock D. a rigid class structure
Severe weather, including tornadoes, is most often associated with a ________ front
Fill in the blank(s) with correct word
Migration and diffusion across Earth's surface is described under the principal geographic theme of movement
Indicate whether the statement is true or false