Which of the following is a renewable resource? (A) Ethanol (B) Uranium (C) Petroleum - HSC - SSCE Chemistry - Question 4 - 2007 - Paper 1

To determine which option represents a renewable resource, we must understand the definitions of each choice:

1. Ethanol: Ethanol is derived from plant material, primarily using crops like corn and sugar cane. It can be produced continuously as long as the crops are grown. Therefore, ethanol is considered a renewable resource.

2. Uranium: Uranium is a non-renewable resource used primarily as fuel for nuclear power. It is mined from the earth and cannot be replenished in a human timeframe.

3. Petroleum: Petroleum is also a non-renewable resource, formed over millions of years from decomposed organic matter. Once extracted, it cannot be replaced quickly.

Given this assessment, the only renewable resource among the options is ethanol.