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    Question

    Which one of the following techniques is used to monitor

    crop health?
    A Surveillance Correct Answer Incorrect Answer
    B Vigilance Correct Answer Incorrect Answer
    C Remote sensing Correct Answer Incorrect Answer
    D All of these Correct Answer Incorrect Answer

    Solution

    "Remote sensing" is the technique used to monitor crop health. Remote sensing involves the use of satellite-based or airborne sensors to capture images and data from the Earth's surface. These images can be analyzed to assess various aspects of crop health, including vegetation vigor, stress, and disease prevalence.

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