The Spanish flu outbreak that lasted from January 1918 to December 1920 spread around the world, even to the Arctic and remote Pacific islands. During the outbreak, between 50 and 130 million people died making it one of the deadliest natural disasters in human history. Which best describes this outbreak?
A. a pandemic
B. an epidemic
C. a transgenic disaster
D. a remission
Answer: A
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The AIDS crisis in Sub-Saharan Africa has its highest prevalence in
A) West Africa (ex. Ghana, Ivory Coast) B) urban areas across the continent C) East Africa (Kenya, Tanzania) D) Southern Africa (South Africa, Malawi, Zambia) E) Central Africa (Congo, Rwanda, Burundi)
A shield volcano has a great ________.
A. width compared to its height B. amount of pumice C. proportion of pyroclastic material, compared with lava flows D. height compared to its width
Dittmar analyzed approximately seventy seawater samples collected around the world during the Challenger Expedition. He concluded that ________.
A. the major ions were always present in the same ratios and dissolved gases are always present in the same ratios B. salt content changes due to processes that add or subtract salt C. the major ions were always present in the same ratios D. seawater had the same salinity worldwide E. dissolved gases are always present in the same ratios
General Circulation Models (GCMs)
A) typically have very fine resolution (e.g., 30 m). B) predict specific future temperatures based on various scenarios. C) offer scenarios of future global warming based on societal choices. D) can currently only represent atmospheric conditions, though future models will incorporate ocean circulation. E) are primarily two dimensional models for several weather forecasting.