After a NAPL contaminant reaches the subsurface, the most important remedial action is:
a. source control
b. containment
c. pump and treat
d. biodegradation
a
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Which of Ullman's three essential conditions for spatial interaction is most likely to be an influence upon migrants who are more influenced by push factors to leave an origin than the pull factors of a destination?
A. intervening opportunity B. complementarity C. transferability D. none of these
Which industry releases the most toxic substances into the environment?
A. metal mining B. oil and gas C. chemical D. farming
A cooling of surface ocean waters in the eastern equatorial Pacific Ocean is known specifically as ________
A) La Niña B) the ENSO effect C) El Niño D) Antarctic bottom water E) the Little Ice Age
Rain is naturally somewhat acidic
Indicate whether the statement is true or false