'The Earth's Resources' looks at the many different types of natural resources, and how people make use of them. It looks at water, minerals and metals, and renewable sources such as biomass, solar, geothermal and hydropower, and their importance as non-renewable resources run out.Farmers need healthy, fertile soil to grow plentiful crops, and people rely on food crops for life. PLANTS Plant resources are the source of ... down the organic waste in humus. As they do so, they release into the soil nutrients that make it fertile.
|Title||:||The Earth's Resources|
|Author||:||Richard Spilsbury, Louise Spilsbury|
|Publisher||:||Evans Brothers - 2006|