A small orchid plant that is found only on a tiny island in the Atlantic Ocean, just off the coast of Florida, has been listed as an endangered species. Which agency was responsible for listing this plant as endangered?
a. National Marine Fisheries Service
b. U.S. Fish and Wildlife Service
c. U.S. Botanical Survey
d. International Commission on Rare Plants
e. Convention on International Trade in Endangered Species
B
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This globe, from the opening two-page spread of the Climate chapter, shows average annual temperature (warmest is red, coolest is purple). What is the main factor causing Europe to be colder than Africa?
A) Trade winds
B) Westerlies
C) Amount of insolation
D) Ocean currents
The United States produced 16 quadrillion BTUs of which type of energy in 2017?
a) Nuclear energy b) Natural gas c) Hydropower d) Coal
The trickling-filter system and the activated-sludge system both require
A) high levels of oxygen to promote aerobic decomposition. B) high levels of carbon dioxide to adjust the pH of the water for bacterial action. C) the addition of large amounts of chlorine to kill pathogens. D) the addition of large amounts of ammonia as nutrients to support decomposers.
Surprisingly, the highest levels of biodiversity are found in the subarctic and polar biomes
a. True b. False Indicate whether the statement is true or false