Which of the following is correct about "El Nino effect"?

Options

A. temperature rise leads to odd climatic changes
B. cutting down the use of fossil fuels.
C. planting trees
D. slowing down the growth of human population

Answer

**Step-by-Step Solution:**

1. **Understanding El Niño Effect**: The El Niño effect refers to the unusual warming of ocean surface temperatures in the central and eastern tropical Pacific Ocean. This phenomenon can lead to significant climatic changes globally.

2. **Identifying the Impact of Temperature Rise**: The El Niño effect causes a rise in sea surface temperatures, which in turn affects global weather patterns. This can lead to altered rainfall patterns, increased frequency of extreme weather events, and disruptions in agriculture.

3. **Evaluating the Given Options**: The options provided in the question include:
- Temperature rise leads to old climatic changes.
- Cutting down the use of fossil fuels.
- Planting trees.
- Slowing down the growth of human population.

4. **Analyzing Each Option**:
- **Temperature rise leads to old climatic changes**: This option is correct as the El Niño effect is associated with significant climatic changes due to increased temperatures.
- **Cutting down the use of fossil fuels**: While this is a positive environmental action, it is not directly related to the El Niño effect.
- **Planting trees**: Similar to the previous option, this is beneficial for the environment but not a direct consequence of the El Niño phenomenon.
- **Slowing down the growth of human population**: This is a demographic issue and not directly linked to the El Niño effect.

5. **Conclusion**: The most accurate statement regarding the El Niño effect is that "temperature rise leads to old climatic changes."

**Final Answer**: Temperature rise leads to old climatic changes.

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