| 21. | Though popularly called bogs, many of them are technically fens.
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| 22. | The total area of peat bog is about 655 km 2.
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| 23. | It takes centuries for a peat bog to recover from disturbance.
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| 24. | In treeless areas there are bogs, resulting from coastal flooding.
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| 25. | Among the numerous varieties of trees Itasca accommodates are conifer bog.
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| 26. | Many of these are grown in artificial ponds called cranberry bogs.
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| 27. | This is an abundant bird of taiga bogs and wet meadows.
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| 28. | In the bog, the iron is concentrated by two processes.
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| 29. | Bog iron was also found on the Eastern Shore of Maryland.
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| 30. | The bog then swoops all the rubbish into the nearby sea.
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