The El Nino effect is related to

Options

A. Unusual climatic changes due to rise in temperature
B. Formation of an area of thin ozone, called ozone hole
C. Accidental leakage of radio- active substance
D. Consequences of deforestation

Answer

### Step-by-Step Solution:

1. **Understanding El Niño**: The El Niño effect refers to a periodic climatic phenomenon characterized by the warming of ocean surface temperatures in the central and eastern Pacific Ocean. This phenomenon significantly impacts global weather patterns.

2. **Identifying the Causes**: The El Niño effect is primarily related to unusual climatic changes. These changes can be attributed to various factors, but in this context, it is linked to the rise in temperature of ocean waters.

3. **Global Warming Connection**: The rise in ocean temperatures due to El Niño is associated with global warming. Global warming results from the greenhouse effect, which is caused by the accumulation of greenhouse gases in the atmosphere.

4. **Greenhouse Gases**: The main greenhouse gases include carbon dioxide (CO2), methane (CH4), and chlorofluorocarbons (CFCs). These gases trap heat in the atmosphere, leading to an increase in global temperatures.

5. **Consequences of Temperature Rise**: As temperatures rise, it leads to various climatic changes, such as altered precipitation patterns, increased frequency of extreme weather events, and changes in ocean currents.

6. **Conclusion**: Among the options provided, the El Niño effect is best related to unusual climatic changes due to a rise in temperature, making it the correct answer.

### Final Answer:
The El Niño effect is related to unusual climatic changes due to a rise in temperature.

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