Is Soil a Nonrenewable or Renewable? By Ben Pham It’s nonrenewable because soil contains tiny pieces of rock. Rocks break down (weather) and erodes away naturally, but it takes a really long time to break it into very tiny pieces. It take more than a life time for rock to erode. So if you want soil you can’t always have it immediately. QuickTime™ and a decompressor are needed to see this picture. QuickTime™ and a decompressor are needed to see this picture. Did you know soil is also renewable? Soil is also made up of compost. Compost is dirt mixed with broken down material. This is a natural process that is used to renew soil. For example, fruits and vegetables can be broken down into compost. The nutrients make the soil much richer for growing plants. Compost can be made in small amounts or large amounts. It takes anywhere from 14 days up to one year to make compost depending on the size of the compost pile. QuickTime™ and a decompressor are needed to see this picture. Soil is both a nonrenewable and renewable resource. It is nonrenewable because the rocks that make up the soil take a long time to erode. Soil is renewable because compost can be quickly made and used again as part of the soil.