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Environmental Science: A Global ConcernEnvironmental Science: A Global Concern 11th Edition by William Cunningham, Mary Ann Cunningham
النسخة 11الرقم المعياري الدولي: 978-0697806451Environmental Science: A Global ConcernEnvironmental Science: A Global Concern 11th Edition by William Cunningham, Mary Ann Cunningham
النسخة 11الرقم المعياري الدولي: 978-0697806451 تمرين 5
What is DDT, and why was it considered a "magic bullet" Why was it listed among the "dirty dozen" persistent organic pollutants (POPs)
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The pests are insects that harm the live...
Environmental Science: A Global ConcernEnvironmental Science: A Global Concern 11th Edition by William Cunningham, Mary Ann Cunningham
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