Which one of the following pairs is mismatched

Options

A. Nuclear power - radioactive wastes
B. Solar energy - greenhouse effect
C. Fossil fuel burning- release of `CO_(2)`
D. Biomass burning- release of CO2

Answer

To determine which pair is mismatched, we need to analyze the relationships between the given options.

1. **Option A: Nuclear power - Radioactive waste**
- When nuclear power is generated, it results in the production of radioactive waste. This is a correct relationship because the process of generating nuclear energy from radioactive materials inherently produces waste that is radioactive and hazardous to living organisms. Therefore, this pair is correctly matched.

2. **Option B: Solar energy - Greenhouse effect**
- The greenhouse effect is not directly caused by solar energy itself. Instead, it is a phenomenon that occurs due to certain gases in the atmosphere (greenhouse gases) such as carbon dioxide, methane, and water vapor. These gases trap heat from the sun, preventing it from escaping back into space and thus maintaining the Earth's temperature. Therefore, while solar energy contributes to the greenhouse effect, it is not the cause of it. This pair is mismatched.

3. **Option C: Burning fossil fuels - CO2 emission**
- Burning fossil fuels, such as coal and petroleum, releases carbon dioxide (CO2) as a byproduct. This is a well-known consequence of fossil fuel combustion. Therefore, this pair is correctly matched.

4. **Option D: Burning biomass - CO2 emission**
- Similar to fossil fuels, burning biomass (organic materials) also releases carbon dioxide. This is because biomass is composed of organic compounds that, when combusted, release CO2. Thus, this pair is also correctly matched.

After analyzing all the options, we conclude that:

**Answer: Option B (Solar energy - Greenhouse effect) is the mismatched pair.**