In which of the following remote sensing technique is not used?

Options

A. Medical treatment
B. Pollution
C. Wetland mapping
D. Ground water survey

Explanation

To determine which of the following techniques is not used in remote sensing, we need to analyze the options provided. Remote sensing is a method that allows us to gather information about an object or area without making physical contact. It can provide data on various aspects such as size, color, temperature, and location through the use of satellites and other technologies.

1. **Understanding Remote Sensing**: Remote sensing is primarily used for collecting data from a distance. It is applicable in various fields such as environmental monitoring, agriculture, urban planning, and disaster management.

2. **Analyzing the Options**: The question requires us to identify which option does not fit within the scope of remote sensing. Common applications of remote sensing include:
- Wetland mapping
- Groundwater surveys
- Pollution monitoring

3. **Identifying the Odd One Out**: Among the options, we need to find the one that requires physical interaction or cannot be performed remotely. Medical treatment is a process that necessitates the physical presence of a healthcare provider to examine and treat a patient.

4. **Conclusion**: Based on the analysis, medical treatment cannot be conducted using remote sensing techniques, as it involves direct interaction with the patient. Therefore, the correct answer is that medical treatment is not a remote sensing technique.

**Final Answer**: Medical treatment is the technique that is not used in remote sensing.

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