The discovery of what resource, in 1874, in the Black Hills of South Dakota caused the U.S. government to break their treaty with the Dakota Sioux?
A) Oil
B) Copper
C) Silver
D) Gold
D
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Pelagic clay deposits are associated with deep marine environments
a. True b. False
Endemic species are ________
A) usually the dominant species within an ecosystem B) well established and show the least risk of extinction C) widely distributed, found especially on large continents D) on the brink of extinction E) limited to just one location, such as an island
The wind-chill temperature index
A) is a factor of actual air temperature and wind speed. B) considers the effects of physical activity. C) uses the same variables as the heat index does. D) assumes people are wearing a basic protective clothing. E) takes into account infrared solar radiation.
Why do we need stretches of uninhabited and undeveloped land?
What will be an ideal response?