1. Pigs roll in mud and cows graze on grass all day. 2....
未知题型1. Pigs roll in mud and cows graze on grass all day. 2. Genetically engineered seeds produce food that has been proven to cause cancer and other problems in lab animals. 3. Some farmers refuse to use any pesticides, herbicides, or genetically modified seeds. 4. There are confined animal feeding operations. 5. Conventional farmers use chemical fertilizers to make plants grow. 6. Organic or local food is more expensive than conventional food. 7. Food is irradiated to last longer. 8. Harmful chemicals seep into the ground, or run off into our waterways, poisoning our water.