Whether
Hello everyone!
Last week was still hot, but today is very cold! I can feel the global warming direct. This is a great challenge to the world. We, as a science student, must solve this problem.
But I have a question, that is "why the earth has a period called ice age?" If the Ice age come again, the problem of global warming will be solved? I want to study more to know this.
Sorry it's weather
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