1. Does microbiology provide another way of using sugar as a raw material?
2. Does microbiology provide another way of using sugar or salt as a raw material?
3. What provides another way of using sugar as a raw material?
4. What does microbiology provide?
5. What does microbiology provide another way of using sugar as?
6. Microbiology provides another way of using sugar as a raw material, doesn't it?