Grease leaves an oil stain on the paper. Rub writing paper with crushed sunflower seeds, Hercules groats, flour. Are there any oil stains?

Oil stains from seeds remained in the paper – there is a lot of fat, and in flour and rolled oats, mainly starch and very little fat.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.