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

Environmental & Atmospheric Sciences

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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

Environmental & Atmospheric Sciences

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

Environmental & Atmospheric Sciences

Rain is naturally somewhat acidic

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which industry releases the most toxic substances into the environment?

A. metal mining B. oil and gas C. chemical D. farming

Environmental & Atmospheric Sciences