Ⅳ. 阅读与回答问题
根据短文内容，回答下列问题。
新素材 食物选择影响环境 In our consumer - driven world, the connection between food and the land is often lost. What we eat and how we grow food directly influence climate change, which in turn affects crop yield and health.
In 1860, Cincinnati was a pork production powerhouse, well - known in a bad way as Porkopolis in Ohio, the United States. The local people were upset and angry with the pollutants let out by the slaughterhouse(屠宰场) industry, saying, “Deer Creek(the local river), often running red... was a terrible and dirty pool.” So many people complained(投诉、抱怨) about it that the slaughterhouses finally moved to other places.
Today, food production accounts for about 25％ of all global greenhouse gas emissions(排放). Across the US, cattle farming was one of the significant(重大的) causes of greenhouse gas production and global deforestation among food production. Research suggests that if Americans were able to replace beef with beans as a source of protein(蛋白质), we would meet the goals in the Paris Climate Agreement. Although space can and should be held for culturally significant foods that are made with animal products, replacing them effectively with a plant - based alternative(替代物) makes a difference. A plant - based diet is not only environmentally smart. Studies have shown that plant - based diets are better for your heart and your brain, and they lower the risk of cardiovascular disease and dementia, particularly in the elderly. By developing a plant - based diet, you can lower your carbon footprint from food by 70％.
Reducing food waste is another influential way to lower food - related emissions. Food waste accounts for 8—10％ of global greenhouse gas emissions. You can cut your food waste by saving leftovers and buying food that does not go bad quickly, like frozen vegetables. You can also reduce the distance your food travels and the need for extra packaging and cold storage by buying food at farmers' markets. Buying local food has the additional benefit of supporting local farmers and food producers. Taking part in a community garden is also an excellent way to make sure that the food you eat is nutritious and low - emission while building relationships, food access, and green spaces in your neighbourhood.
1. Why did slaughterhouses in Cincinnati move?

2. How can Americans meet the goals in the Paris Climate Agreement according to research?

3. How much can a plant - based diet reduce carbon footprint?

4. What extra benefits does buying local food have?

5. How do you try to reduce food waste at home?