The practice of suspending rust particles in contaminated water, and then drawing out the rust with hand-held magnets, has been effective in dealing with
a. DDT contaminated water
b. arsenic contaminated water
c. oil contaminated water
d. heavy metal contaminated water
e. acidified water secondary to acid rain
B
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Of the following organisms, which is most closely related to an octopus?
A) mosquito B) clam C) earthworm D) human
The shoreline represents ____
a. the general region of interaction between land and the ocean or lake b. the average position of the water line c. sea level d. the exact, constantly changing contact between dry land and the standing water body
Which of the following has been most negatively impacted by globalization?
A) agricultural practices B) the exchange of information C) international travel D) public-health practices E) local cultures' religious and dietary traditions
Increased velocity and a rough channel can produce a
A) turbulent flow. B) laminar flow. C) maximum velocity. D) decreased capacity.