| At the current growth rate the world's population |
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| The Industrial Revolution started a period |
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| During the second half of the 20th century |
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| The world's population is not spread evenly |
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| Many European countries |
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| About half the world's population |
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| In Third World countries people leave the countryside |
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| China started a one-child policy |
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| Conflicts in the Middle East and Afghanistan |
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| The key to improving women's situation in Africa |
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