作业请于2021年11月1日0点前发至邮箱：zhujiao@cernet.com

邮件题目格式：Week4 Weekly Assignment-学生编号-英文名

Write down 3 problems or events that lend themselves to causal analysis that you could discuss in a college essay. For each of your three problems write 2-3 sentences of causal analysis. For example, if you wrote down as one of your problems “declining insect population” you could, for your analysis, write “Certain chemicals used in industrial agriculture is one cause of the worldwide decline in insects. More specifically, the weed killer dicamba has been shown to have serious negative impacts on bee populations.” I am looking to see if you are using the appropriate language for causal analysis; this language is clarified and specified in the week’s assigned readings, so do the readings before you do the assignment.  This assignment is due no later than the beginning of class on Saturday, October 30. (5%)