Which of the following resources is renewable

1. Analyze the question The question asks which resource is renewable. A renewable resource can replace itself naturally, or be regrown or replenished within a human lifetime, so it does not run out if managed well.

2. Explain the concept In Economics, natural resources fall into two groups:

• Renewable resources: can be replaced or regrown. Examples are crops, forests, fish, animals, water, solar energy and wind.
• Non-renewable (exhaustible) resources: exist in fixed amounts, or take millions of years to form, so once used up they are effectively gone. Examples are minerals and fossil fuels such as coal, petroleum, iron ore and limestone.

3. Solution: check each option

• A. Coal: a fossil fuel formed over millions of years. Non-renewable.
• B. Iron ore: a mineral deposit in the earth's crust. Non-renewable.
• C. Rice: a crop that can be planted and harvested season after season. Renewable.
• D. Limestone: a sedimentary rock mined from the earth. Non-renewable.

4. Answer Rice is the only option that can be replanted and regrown, so it is the renewable resource.

Correct option: C

5. Exam tip Ask yourself: "Can I plant it, breed it, or will nature replace it quickly?" If yes, it is renewable (crops, trees, fish). If you have to dig it out of the ground (coal, minerals, crude oil), it is non-renewable. Remember: "Dug up = used up; grown = renewed."