There are many kinds of natural resources on the earth. People use natural resources to produce goods.
Trees are used to build our homes and buildings. Oil that is pumped from the ground is made into fuel and other products we use every day. Minerals, such as gold and salt, are also very important natural resources.
We can divide the earth's resources into renewable and nonrenewable resources.
Renewable resources can be used again and again. Water, soil, and trees are renewable resources. Also, solar power and wind power are renewable resources. They can be replaced within a short time.
Nonrenewable resources are the opposite. We can only use them once, and then they are gone forever. Many energy resources, such as oil, coal, and natural gas, are nonrenewable resources. They are limited in supply and cannot be replaced easily.
We must conserve our natural resources so that we do not run out of them.