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O Level Biology Practice Tests


O Level Biology Tests

Herbicides O Level Biology MCQ Quiz Online PDF Download

The Book Herbicides O Level Biology Multiple Choice Questions (MCQ Quiz) PDF, Herbicides O Level Biology MCQs download to study online o level biology courses. Practice Effects of Human Activity on Ecosystem Multiple Choice Questions and Answers (MCQs), Herbicides O Level Biology quiz answers PDF for GRE test prep classes. The eBook Herbicides O Level Biology MCQ App Download: soil erosion, conservation: renewable resources, deforestation and pollution test prep for GRE practice test.

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Biology: Herbicides O Level Biology MCQs PDF Download

MCQ: Advantages of using pesticides include

A) healthier crops
B) better yield
C) more food and profit for farmers
D) all of above

MCQ: Over a period of time, mosquitoes have developed resistance to

A) dichlorodiphenyl trichloroethane (DDT)
B) biochemical oxygen demand (BOD)
C) dioxins
D) eutrophication

MCQ: Miscarriages in women may be due to intake of

A) carbon dioxide
B) polluted water
C) water containing dioxins
D) DDT

MCQ: Physical, mental abnormalities and risks of cancer are increased due to

A) dichlorophenyl trichloroethane (DDT)
B) biochemical oxygen demand (BOD)
C) dioxins
D) greenhouse effect

Practice Tests: O Level Biology Exam Prep

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