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The Lewis structure of ozone (O₃) is shown on the left below with numbers on the corresponding atoms. Choose the correct set of formal charges of the atoms in ascending order of atom number.

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Which of the following explains an impact of globalized agricultural commodity chains on consumers as compared to producers?ADrought and depletion of groundwater sources in developing countries cause a rise in global grain prices and associated higher costs for food.BThe shift from subsistence farming to value-added agriculture by small farmers in developed countries causes a drop in profits for global agribusiness corporations.CThe imposition of government-imposed tariffs on specialty crops in order to protect domestic farmers causes a worldwide decrease in all farm products.DFarmers in developing countries who are unable to gain access to global food markets to sell their goods protest, leading to global unrest.EAgricultural production with a focus on monocropping cash crops creates more vulnerability in a country's exports if consumer preferences shift to a different commodity.

required some mechanism for removing and storing organic carbon out of contact with the atmosphere.O2 is released by photosynthesis but taken up in respiration, a balanced chemical process. To disrupt the balance in favour of atmospheric O2 increase, organic matter has to be removed from the system. If organic matter dies and becomes sequestered in sediments at the ocean bottom, O2 will increase in the ocean and eventually outgas into the atmosphere. Another hypothesis for O2 increase is that the concentration of reduced compounds like Fe[2+] became depleted, so they were not available to react with O2.

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