Which of the following pair(s) is/are correctly matched?
A fossil fuel burning-co, release
B. nuclear plant-Radioactive wastes
C.CO, -Green house effect
D. Montreal protocol - Control O, depletion.

Options

A. A,B
B. A,B,C
C. A,D
D. A,B,C,D

Answer

To determine which of the pairs are correctly matched, we will analyze each option:

1. **Fossil Fuel Burning - CO Release**:
- When fossil fuels (like coal, oil, and natural gas) are burned, they primarily release carbon dioxide (CO₂) and other gases. While carbon monoxide (CO) can also be produced, it is not the primary gas associated with fossil fuel combustion. Therefore, this pair is **not correctly matched**.

2. **Nuclear Plant - Radioactive Wastes**:
- Nuclear power plants generate energy through nuclear fission, which indeed produces radioactive waste as a byproduct. This pair is **correctly matched**.

3. **CO₂ - Greenhouse Effect**:
- Carbon dioxide (CO₂) is a significant greenhouse gas that contributes to the greenhouse effect, trapping heat in the atmosphere and leading to global warming. This pair is **correctly matched**.

4. **Montreal Protocol - Control Ozone Depletion**:
- The Montreal Protocol is an international treaty designed to phase out substances that deplete the ozone layer. This pair is **correctly matched**.

Now, summarizing the correctness of each pair:
- A: Not Correct
- B: Correct
- C: Correct
- D: Correct

Thus, the pairs that are correctly matched are B, C, and D.

### Final Answer:
The correctly matched pairs are:
- B. Nuclear plant - Radioactive wastes
- C. CO₂ - Greenhouse effect
- D. Montreal protocol - Control ozone depletion