Aditi purched a packet of bread she went to town she forget to keep the bread in the fridge when she came Back she observe that the bread that there was a black and white cottony growth on the bread​

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

The answer is d- principle of faunal succession.

Do not include the unexpected results