: Humans are unable to see during nighttime. , Clothes end up polluting the planet. , Cities consume tons of energy. , Meat production significantly harms the environment., Water resistance slows down swimmers., Running can strain your knees., Humans are becoming increasingly lonely., Many couples cannot afford to have children., Navigating cities is challenging for blind people., DangDangerous chemicals might be smuggled through airports.,

Problems B2

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Incorporer

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