11.   Leaf-cutters in tropical countries are essential to recycling plant material and to keeping the soil aerated as earthworms do in more temperate climates.

12.   Mahogany For Everyone Rain forests have lost value for many tropical countries as a result of the boycott of expensive tropical wood.

13.   Nor do tropical countries rely only on spices that are locally grown.

14.   That is roughly the latitude of the present-day tropical countries of Panama and Costa Rica.

15.   Two of its malls sport ice-skating rinks, the only ones in this tropical country.

16.   While relatively uncommon in the United States, leptospirosis thrives in some tropical countries, where it does kill humans.

17.   With luck, Brazil might even inspire other tropical countries to follow suit.

18.   But tropical countries like Malaysia and Thailand are not sofamiliar with the wide variety of knitwear available.

19.   Droughts caused by the El Nino phenomenon are expected to greatly affect tropical countries.

20.   He was pleased to see several sports had made arrangements to complete their preparations in other tropical countries.