Select the WRONG statements regarding carbon cycle.

Options

A. Oceanic water can retain upto 50 time the `CO_2` levels in the air
B. The only major reservoir of carbon in the biosphere is the lake
C. Volcanic eruptions, hotsprings, burning of fossil fuel and weathering add carbon dioxide into the atmosphere .
D. The recycling of carbon is a self regulating feedback system.

Answer

To solve the question regarding the wrong statements about the carbon cycle, we will analyze each statement provided and determine its correctness step by step.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "Oceanic water can retain up to 50 times CO2 level in the air."
- **Analysis**: This statement is correct. Oceanic water indeed absorbs a significant amount of CO2 from the atmosphere, and it can hold much more CO2 than the air can.

2. **Statement 2**: "The only major preserver of carbon in biosphere is the lake."
- **Analysis**: This statement is misleading. While lakes do store carbon, they are not the only major reservoirs. Forests, soils, and oceans also play significant roles in carbon storage. Therefore, this statement is incorrect.

3. **Statement 3**: "Volcanic eruptions, hot springs, burning of fossil fuels and weathering add CO2 in atmosphere."
- **Analysis**: This statement is correct. All the mentioned processes contribute to the increase of CO2 levels in the atmosphere through various means, such as combustion and geological activities.

4. **Statement 4**: "The recycle of the carbon is a self-regulating feedback system."
- **Analysis**: This statement is partially correct but requires clarification. The carbon cycle does involve feedback mechanisms, but it is not solely self-regulating as it heavily depends on biological processes, including photosynthesis by plants. However, the claim that it is not self-regulating is misleading.

5. **Conclusion**:
- The statement that is clearly wrong is **Statement 2**, as it inaccurately states that lakes are the only major preserver of carbon in the biosphere.

### Final Answer:
The wrong statement regarding the carbon cycle is: **"The only major preserver of carbon in biosphere is the lake."**

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