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1. Rachel Carson's Silent Spring inspired the environmental movement.
- Rachel Carson's book, "Silent Spring," published in 1962, highlighted the harmful effects of pesticides, particularly DDT, on the environment and wildlife.
- The book played a significant role in raising awareness about the importance of environmental conservation and the need to protect our ecosystems.
Therefore, the correct answer is the environmental movement. If you have any more questions or need further clarification, feel free to ask!