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12 questions from this quiz
Sufficient, safe & nutritious food supply
Soil depletion & reduced crop yields
They increase demand for limited resources
Disease-causing organisms
It causes droughts, floods & unpredictable weather
Over-fishing so not enough fish in future
They decrease at each level
Carbon dioxide, a greenhouse gas
Meeting today's needs without harming future generations
They take up land that could grow food crops
Crop populations may not be resistant to them
They break down waste & return elements to soil/air
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