To Selectively Remove Soil Toxins from Regions Affected by Hurricane

Multiple Choice

To selectively remove soil toxins from regions affected by Hurricane Katrina, some residents have raised sunflowers and other plants in their yards. Then, the mature plants are pulled up and safely stored with other contaminated wastes. This is an example of

A) biological augmentation.
B) reducing primary production.
C) lowering production efficiency.
D) bioremediation.
E) arresting nutrient cycling.