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Riparian zones are important to the natural environment because they _______.

Acontain pollution from runoff
Breduce soil erosion
Csupport diverse organisms
Dall of the above

Verified Answer :

Answer: d. all of the above

A riparian zone is the interface zone between the land and a river. The plants near the banks of the river forms the riparian vegetation. This vegetation consists of hydrophilic plants. This area contains pollution from the runoff because the vegetation restricts the flow of pollutants in the water. It reduces soil erosion as the plants are holding the soil which does not dispense in the river water. This zone supports the growth of diversity of plants and animals which are terrestrial and amphibians (which requires both land and water habitats for their survival).  

(D) All of the above