List three important sources of pollutants in the United States
What will be an ideal response?
Answer: Any three of these:
(i) electric utilities
(ii) transportation
(iii) fuel combustion
(iv) industrial processes
(v) miscellaneous (dust, fires, etc…)
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_____ is a sedimentary rock formed mechanically from fine silt and clay particles.
a - granite b - sandstone c - basalt d - limestone e - shale
A glacier will start to move of its own weight when it reaches a thickness of a few ________
A) centimeters (inches) B) dozen centimeters (dozen inches) C) meters (feet) D) dozen meters (dozen feet) E) kilometers (miles)
The Industrial Revolution first took hold in the United States in the South
Indicate whether the statement is true or false
An example of ________ is the migration of doctors and engineers to the United States after they have received years of government-financed schooling and training in Colombia
A) brain drain B) chain drain C) chain migration D) net migration E) cohort migration