Answer:
In a disaster, you face the danger of death or physical injury. You may also lose your home, possessions, and community. Such stressors place you at risk for emotional and physical health problems. Stress reactions after a disaster look very much like the common reactions seen after any type of trauma.
Water erosion is the main cause which is the loss of topsoil due to water.
A - the state divided into cities
They went down the yarmuk river an took over