The factors which do not contribute to the development of cyclones are
(i) Wind speed
(ii) Temperature
(iii) Humidity
(iv) Wind direction

Options

A. (i) and (iv) only
B. (ii) and (iii) only
C. (i) and (iii) only
D. None of these

Explanation

To solve the question regarding the factors that do not contribute to the development of cyclones, we will analyze each option provided:

**Step 1: Understand Cyclone Formation**
Cyclones are large weather systems characterized by low pressure at their center, surrounded by high pressure. They are influenced by several atmospheric conditions.

**Step 2: Analyze Each Option**
- **(i) Wind speed**: Wind speed is crucial for cyclone formation. Higher wind speeds can lead to stronger cyclones. Therefore, it contributes to cyclone development.

- **(ii) Temperature**: Temperature differences are essential for cyclone formation. Warm air rises, creating low pressure, which leads to cyclonic activity. Thus, temperature is a contributing factor.

- **(iii) Humidity**: Humidity refers to the amount of water vapor in the air. High humidity levels provide the moisture necessary for cloud formation and precipitation in cyclones. Therefore, humidity also contributes to cyclone development.

- **(iv) Wind direction**: Wind direction helps in the movement and development of cyclones. It affects how air masses interact and can lead to the formation of cyclonic systems. Thus, wind direction is also a contributing factor.

**Step 3: Conclusion**
Since all the options listed (wind speed, temperature, humidity, and wind direction) contribute to the development of cyclones, we can conclude that none of these factors do not contribute. Therefore, the correct answer to the question is that there is no option among the given choices that does not contribute to cyclone development.

**Final Answer: None of the options listed do not contribute to cyclone development.**

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