See also bioaccumulation and marine pollution.
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This very thorough and engaging documentary investigates the problems and potential solutions to pig-waste run-off: the cause and scale of the problem; traditional lagoon-and-spray management; groundwater pollution. Nitrates, phosphates, ammonia, coliform bacteria. More vulnerable communities more badly affected. Technical solutions constrained by economic factors; trials of methane capture for electricity generation.
Find the film r by searching YouTube’s Vox channel for “Hog farming has a massive poop problem".
16 questions for the 16 min film. Differentiated: both versions look similar, but “B” version has subtle clues. Excellent subtitles: scripted, not auto-generated brainrot. Answer sheet. Very easy to mark. .doc & .pdf for all files. Link to film on all sheets.
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£2.00