1. Natural foods are rich inessential ____①____and ___②___.2. The use of chemicals and fertilizers is to increase the __③_not the _④___of foods.
举一反三
- To use chemicals and fertilizers means ______. A: to increase the amount of foods B: to increase the quality of foods C: to increase the amount and quality of foods D: to increase essential vitamins and minerals
- The purpose of using chemicals and fertilizers is to increase the quality of foods.
- Natural foods make up a small part of organic foods.
- 48. The quantity of farm foods is related to the use of chemicals and fertilizers.（ ）
- Organic food grown with natural fertilizers may be less expensive than those foods not utilizing natural fertilizers.