<h2><u>Perpetual Resources</u>:<em> Perpetual resources are those that last forever like solar energy and wind.Sunlight, wind, geothermal heat, tides, and flowing water are perpetual resources. On Earth, there are only limited amounts of fossil fuels such as oil, coal and natural gas.</em></h2><h2><u>Renewable Resources</u>:<em> A renewable resource, also known as a flow resource, is a natural resource which will replenish to replace the portion depleted by usage and consumption, either through natural reproduction or other recurring processes in a finite amount of time in a human time scale. </em></h2><h2><em>Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. </em></h2><h2><u>Non renewable Resources</u>: <em> A non-renewable resource is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. There are four major types of nonrenewable resources: oil, natural gas, coal, and nuclear energy.</em></h2>
<span>The law that prohibited the marketing of new drugs unless they were adequately tested to demonstrate safety was the </span>Federal Food, Drug, and Cosmetic Act of 1938
