Explanation: Mosquitoes are a significant public health concern in India, as they are vectors for several diseases such as malaria, dengue, and chikungunya. The primary breeding ground for mosquitoes is stagnant water, which can be found in various places such as pits, containers, and other water-holding structures. Therefore, controlling mosquito breeding is crucial for preventing the spread of these diseases.
The correct answer is (E) All of the above, as each of the methods mentioned plays a vital role in mosquito control:
1. **Filling up pits (Option A):** Pits and depressions in the ground can collect water, especially after rainfall. By filling these pits, we eliminate potential breeding sites for mosquitoes. This method is particularly effective in urban and rural areas where such depressions are common.
2. **Spraying oil in stagnant water (Option B):** When oil is sprayed on stagnant water, it forms a thin layer on the surface, preventing mosquito larvae from accessing air. This method is useful in areas where water cannot be drained, such as large ponds or reservoirs. The oil layer suffocates the larvae, thereby reducing the mosquito population.
3. **Do not let stagnant water to collect (Option C):** This is one of the most effective methods of mosquito control. By ensuring that water does not stagnate, we can prevent mosquitoes from laying their eggs. This includes regular cleaning of gutters, emptying containers that hold water, and ensuring proper drainage in the environment.
4. **Keeping our surrounding clean (Option D):** Maintaining cleanliness in the surrounding area is crucial for mosquito control. This includes disposing of waste properly, maintaining gardens, and ensuring that there are no standing water sources. Cleanliness helps to eliminate breeding sites and reduces the overall mosquito population.
Combining these methods provides a comprehensive approach to mosquito control. Each method addresses different aspects of mosquito breeding and helps to create an environment that is less conducive to mosquito proliferation. By implementing these strategies, we can significantly reduce the mosquito population and the risk of mosquito-borne diseases.
In conclusion, the correct answer is (E) All of the above, as each of the methods mentioned is effective in controlling mosquito breeding and is essential for public health in India.