Some modern farmers use drones and sensors to check exactly which parts of their field need water or medicine. This is called "Precision Agriculture." How does this help the environment?

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• A It saves water and reduces the use of harmful chemicals by only applying them where needed.
• B It allows the farmer to stay at home and play video games.
• C Drones scare away all the bees and butterflies.
• D It makes the vegetables grow in perfect square shapes.

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