As early as 1851, European countries convened the in an effort to
prevent the spread of infectious diseases from developing countries to Europe, primarily through travel and trade.
Fill in the blank with correct word
Answer: International Sanitation Conference
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?A service like that provided by Google, which searches the Internet but provides little original content,
A. ?is considered an aggregator. B. ?is a not-for-profit service that others use to provide their content. C. is considered an accumulator. D. ?is considered an aggregator, and is a not-for-profit service that others use to provide their content. E. ?is considered an accumulator, and is a not-for-profit service that others use to provide their content.
What type of maps shows the locations of resources and trade routes?
a. political maps b. economic maps c. physical maps d. ethnic maps