The a0 slows runoff of rain water, to prevent floods and erosion.

Watershed

The watershed is an area of land where run-off rain water and snow drains downward and catches all the water downstream. With this, the watershed can help protect water supplies, nurtures the forest and wildlife, prevent soil erosion and destructive floods.

Therefore, it is the responsibility of the community to help protect the watershed by planting more trees and keep the area clean and free from water waste.

this disease is :

* endemic (present in a defined area that is a village)

* a bacterial infection (treated with antibiotic)

* communicable by contact (by the hands)

manu-porterage is the most common mode of transmission, it transmits germs from one individual to another via the hands. this concerns infections of exogenous origin.

endemic disease, or endemic disease, refers to a disease that is constantly present in a given population, often tied to a specific geographic origin, as opposed to a pandemic that is not a sporadic disease.

antibiotics are molecules that have the property of killing (bactericidal) or limiting the spread (bacteriostatic) of bacteria.