The Roman Empire introduced __________ to Europe.
a. a common infrastructure
b. both a common infrastructure and specialization of goods
c. exploration
d. specialization of goods
e. currency
b. both a common infrastructure and specialization of goods
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Ozone, a gaseous O3 molecule that filters out harmful UV radiation, is found in the
a. Troposphere b. Geosphere c. Hydrosphere d. Stratosphere e. Biosphere
Weather is defined by
A) the type of precipitation, if any, that is occurring at a specific time. B) the conditions in the atmosphere at some specific time and place. C) how hot or cold it is outside. D) the long-term pattern of temperature and precipitation levels at a place.
Less than 0.03 percent of Earth's water is stored in the atmosphere
Indicate whether the statement is true or false
Which of the following is associated with an La Niña-ENSO phase?
A) reversal of the northeast trade winds B) higher pressure over the western Pacific and lower pressure over the eastern Pacific C) weakened upwelling in the Humboldt (Peru) current D) increased thermocline in the eastern Pacific E) cooler than normal sea surface temperatures in the eastern and central Pacific