Respuesta :
					                   Answer:They are made up of two or more pure substances that are not chemically bonded together and appear non-uniform.
Explanation: A good example can be chalk and water or sand and water which do not mix together. Hence they form two layers which is heterogeneous
					                
					                
					             Explanation: A good example can be chalk and water or sand and water which do not mix together. Hence they form two layers which is heterogeneous
