To use less. Re-refine To clean used oil so that it can be used again. This process saves energy and money and prevents possible pollution from oil that is improperly handled. A naturally-occurring resource from the Earth that can replenish itself or grow back again, such as sun, water, trees, and animals. To remove the outside, or tread, of a tire and add a new tread.
Retreaded tires work just as well as new ones and require less energy and money to make.
Reuse To clean or repair something old and use it again instead of throwing it away. Sisal A strong fiber, found in the leaves of a certain plant, which is used to make rope. Other plants, such as jute and hemp, can also be used to make rope.