The following appeared in a letter to the editor of a journal on environmental issues.
"Over the past year， the Crust Copper Company （CCC） has purchased over 10，000 square miles of land in the tropical nation of West Fredonia. Mining copper on this land will inevitably result in pollution and， since West Fredonia is the home of several endangered animal species， in environmental disaster. But such disasters can be prevented if consumers simply refuse to purchase products that are made with CCC's copper unless the company abandons its mining plans."
Write a response in which you examine the stated and/or unstated assumptions of the argument. Be sure to explain how the argument depends on these assumptions and what the implications are for the argument if the assumptions prove unwarranted.
中文翻译：
去年，CCC公司在热带国家West Fredonia购买了上万平方英里的土地。在这些地方采矿将会不可避免地导致污染和环境灾害，因为West Fredonia是很多濒危物种的栖居地。但如果消费者简单地拒绝购买用CCC所生产的铜而制造的产品，直到CCC放弃它的采矿计划就可以避免这种灾害。
写一篇回应，在其中检视文章的论证中述及和/或未明确述及的假设，务请解释文章的论证是如何依赖于这些假设的，并指出如果这些假设不成立会对文章的论证带来何种影响。
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