A bread kept in a cupboard for a week develops grayish-black dots on its surface. What may be these dots? Why do they grow on bread?

A bread kept in a cupboard for a week develops grayish-black dots on i

1.	A bread kept in a cupboard for a week develops grayish-black dots on its surface. What may be these dots? Why do they grow on bread?
Answer» A bread kept in a cupboard for a week develops grayish-black dots on its surface. What may be these dots? Why do they grow on bread?