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Regulating services consist of ecosystem processes that maintain environmental conditions favourable to life. The most important of these are the cycling of substances and ensuring of the reproduction of organisms. Some regulating services are less vital, but still beneficial to humans such as the abatement of noise and pollution by trees and plants in cities.A sinkhole is a depression in the ground that has no natural external surface drainage. Basically, this means that when it rains, all of the water stays inside the sinkhole and typically drains into the subsurface. The picture above showing a sink hole in Amamoma community helps in Flood protection. It can control the frequency and magnitude of runoff and flooding through water interception and storage. River channel alterations and floodplain development can reduce the ability of ecosystems to provide this buffering effect. Aquifers and other unsaturated soils and rocks can provide capacity to store extreme rainfalls as groundwater, providing buffers to flood risk and drought