Water is the most important element when stocking up for a hurricane or other disaster. The recommended quantity is to store 3 gallons of water per person for each day the disaster will presumably last. But sometimes, disasters can last longer than anticipated, so knowing how to purify water from an alternative water source could potentially save your life. Since your source could be a river, lake or other, the water will not only taste and smell bad, but could be harmful because of the microorganisms and pollutants in it. This is why you will need to purify it before consuming it. It is always a better idea to get water from moving sources if you can.
Soil erosion removes the organic matter, nutrients and the microorganisms which are vital for the plants and to any arable land. Not only is this soil crucial for the people because almost all of the food is plant-based, and it is also an important issue because most of the soil which is lost ends up in rivers, lakes and other natural water sources, which pollutes them because of the fertilizers and pesticides used for agriculture.