First of all, natural resources are very important for our economy and for the world's economy. It is very well-known that many countries in the world have become very rich. For example gas and oil industry are a vivid example about this " PWC estimates that at the natural level the oil and gas industry's operation supported 8.4 part and full time jobs in the national economy 2011"(http://www.api.org/~/media/Files/Policy/Jobs/Economic_impacts_Ong_2011.pdf). So, a natural resource plays an important role in the economy. Some countries exploit resources like water for agriculture and exporting grains. In addition, some countries use the natural resources to get their food for example japan and Asian countries who have their food from the sea. Also, the wind and solar power are used in the present time for generating electricity which can be used in many fields. Trees and plants in the forests are used also in an economic way. Some countries cut trees and export its timber while other countries make the best use of the animals in these forests.