| 11. | These storms derive their energy from the sharp temperature contrasts in the middle latitudes.
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| 12. | Nearly all ice caps in the middle latitudes of Africa and South America have disappeared.
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| 13. | In middle latitudes, it is more accurate to speak of ozone depletion rather than holes.
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| 14. | Unlike the westerlies in the middle latitudes, the polar easterlies are often weak and irregular.
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| 15. | Disturbances that have features of tropical and middle latitude cyclones are sometimes called subtropical storms.
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| 16. | Lineated valley fill is common in the middle latitudes, especially near the northern dichotomy boundary.
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| 17. | Members of this family occur throughout the oceans of the world at low to middle latitudes.
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| 18. | Disturbances that share features of both tropical and middle latitude cyclones are sometimes called sub-tropical storms.
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| 19. | The oceanic climates occur in the higher middle latitudes, between 45?and 60?north and south latitude.
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| 20. | Typically, several days after the typhoon's effects reach the middle latitudes, eastern North America turns much cooler.
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