Which one of the following is an example of both human provision and ecosystem support and regulation?
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Answer choices
Shrubs along the Potomac River prevent soil erosion and prevent flooding.
The Daniel Boone Forest in Kentucky is a popular recreation area as well as a wildlife habitat.
European honeybees provide honey and pollinate wildflowers as well as farmers' crops.
Chickadees eat disease-carrying mosquitoes and help propagate seeds.