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
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
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)