Hell's Canyon, a narrow, steep-sided valley, on the Idaho- Oregon border is an example of a valley formed by what?
A) Tectonic activity
B) Glaciation
C) Flowing water
D) Volcanic activity
C
Environmental & Atmospheric Sciences
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Which of the following centers of early global civilization was NOT linked by the Silk Road?
A) Eastern Mediterranean B) China C) Northern India D) Central Andes and Mesoamerica E) the Ottoman Empire
Environmental & Atmospheric Sciences
Which of the following air conditions is indicated by a coning shape plume rising from a smokestack?
A. neutral B. stable C. unstable D. inversion
Environmental & Atmospheric Sciences
Present-day hominids arose from the ____________________ and ____________________ groups. Fill in the blank(s) with the appropriate word(s)
Environmental & Atmospheric Sciences
____ was one of the first researchers to attack issues related to deep-sea sampling
A) Sir John Ross B) Matthew Maury C) Fridtjof Nansen D) John Harrison
Environmental & Atmospheric Sciences