Flexi Says: Natural resources such as oil, coal, and natural gas, are not distributed evenly around the Earth as their deposits depend upon climate and organisms that lived in that region, and the geological processes that have occurred millions of years ago. For example, although coal reserves are found in every country, however, its large reserves are found in the United States, Australia, and India etc. This is because the areas that these countries covered were swamp forests with trees millions of years ago, and it is these forests that provides the organic matter for the formation of coal.