The renewable energy is a form of energy that is harnessed by the sources which can be replenished or reuse after a single use. The non-renewable energy is a form of enery that is harnessed by resources that cannot be replenished again after once used.
The renewable source of energy can be harnessed only when the technology is best. These resources can generate energy after the implentation of technology and scientific procedures. They produce less energy as compared to the non-renewable sources. As the non-renewable resources ready to use and does not require technology to harness energy.
The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
