Which of the following is/are correct regarding Montreal Protocol?
(i) Persistent organic pollutants. (ii) Global warming and climate change.
(iii) To control the emission of ozone depleting substances M
(iv) Biosafety of genetically modified organisms.

Options

A. (ii) &(iii)
B. (iii) only
C. (iii)&(iv)
D. (i)&(iii)

Answer

To determine which statements are correct regarding the Montreal Protocol, let's analyze each statement step by step:

1. **Statement (i): Persistent organic pollutants.**
- The Montreal Protocol does not specifically address persistent organic pollutants (POPs). It primarily focuses on substances that deplete the ozone layer, such as chlorofluorocarbons (CFCs). Therefore, this statement is **incorrect**.

2. **Statement (ii): Global warming and climate change.**
- While the Montreal Protocol indirectly contributes to the fight against global warming by reducing ozone-depleting substances, its primary focus is not on global warming and climate change. Thus, this statement is also **incorrect**.

3. **Statement (iii): To control the emission of ozone-depleting substances.**
- This statement is **correct**. The main aim of the Montreal Protocol, signed in 1987 and effective from 1989, is to control and reduce the emission of substances that deplete the ozone layer, such as CFCs and halons.

4. **Statement (iv): Biosafety of genetically modified organisms.**
- The Montreal Protocol does not deal with the biosafety of genetically modified organisms (GMOs). This topic is addressed by different regulations and protocols, such as the Cartagena Protocol on Biosafety. Therefore, this statement is **incorrect**.

**Conclusion:**
The only correct statement regarding the Montreal Protocol is statement (iii): "To control the emission of ozone-depleting substances."

**Final Answer:**
The correct option is (iii) only.

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