The Sahara and Australian deserts (among others) are associated with the ________
A) equatorial low B) subtropical high C) polar high D) subpolar low
B
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Which type of water pollutant type best describes mercury?
A. heavy metal B. plant nutrient C. thermal D. organic
Consider a steep highway cut made by removing slightly weathered to fresh, fractured, granite bedrock. Which of the following situations is most stable against rockslides?
A. one set of widely spaced, sub-horizontal fractures B. two sets of fractures, one widely spaced and sub-horizontal, the other inclined away from the highway cut C. one set of widely spaced fractures inclined towards the road cut D. two sets of fractures, one inclined toward the road cut and the other away
Frontal lifting is often likened to a conveyor belt and is referred to as:
A) overrunning. B) trans-continental uplift. C) frontal overload. D) isobaric upheaval.
Several million Irish and Germans migrated in the 1840s primarily because
A) of the Black Plague. B) of disastrous economic conditions brought on by government policy and displacement by the Industrial Revolution. C) of poor environmental conditions including massive flooding. D) of religious freedom. E) Russian imperial advances threatened their livelihoods.