MCQOPTIONS
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| 1. |
The trees of tropical rainforest have buttress roots because : |
| A. | they help to provide aeration to soils |
| B. | the organisms found in the buttresses have a symbiotic relationship |
| C. | the trees belong to gramineae family |
| D. | the buttresses have to bear the mechanical load of hardwoods |
| Answer» E. | |