|
|
Renewable resources are those consisting of, or produced by living things. These include Agricultural crops, animal forage, forest crops, and wild and domestic animals. All of these can reproduce their population as long as environmental conditions remain in a good or favorable condition. In ideal conditions, all can be harvested without fear of diminishing the supply. If the rate at which humans harvest these crops exceeds their rate of growth the resources will be depleted.
A renewable resource can be called a "mined" resource if it is removed from the earth at a rate that does not permit its renewal, reproduction, or regrowth. An example of this would be cows which graze in a pasture. If the pasture that feeds the cow is not allowed to grow or is poisened by the over-use of pesticides then the pasture can no longer be used to nourish the cow. The cow can no longer thrive and will eventually become a nonrenewable resource.
Examples of renewable resources include animals and plants, solar energy, water, and air.
NONRENEWABLE RESOURCESNonrenewable resources are those resources which recycle or reproduce. Solar Energy, is the energy produced by the sun. Since the Sun is expected to last millions of years, Solar Energy is said to be inexhaustible meaning it can never be used up. Fossil Fuels include are those organic materials such as coal, petroleum, or natural gas. These are produced from chemical changes in the Earth's crust.
