Answer:
increased erosion in the area.
Step-by-step explanation:
When houses or properties are laid or biult on surfaces that obstruct free flow of water, such can lead to erosion.
When there is an increased erosion in an area, there would be loss in benefit that should be derived from eco system. The components that make up eco system such as soil, micro organisms, water sources, minerals would all be lost because all the components interact with one another which are beneficial to mankind.
One of the importance of eco system is that it support lives control important ecological components. There is also nutrients recycling among biotic and non biotic factors.