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What is the purpose of a pesticide?

  1. To nurture plants

  2. To pollinate flowers

  3. To destroy harmful organisms

  4. To fertilize soil

The correct answer is: To destroy harmful organisms

A pesticide is a substance used to control, destroy, or repel harmful insects, weeds, fungi, rodents, or other organisms that can be damaging to plants, crops, or human health. Pesticides are specifically designed to eliminate or reduce the presence of these organisms, making option A and B incorrect. Fertilizers, on the other hand, are used to provide essential nutrients to plants to aid in their growth, so option D is also incorrect. Therefore, the purpose of a pesticide is to destroy harmful organisms, making option C the correct answer.