Dear Student,
Real Flow- Flow of factor services i.e. goods and services from producers to the consumers of goods. e.g. - A doctor offering his services for treating a patient.
Money flow- Real flow causes money flow. In order to procure goods and services, buyers need to pay. This payment in monetary terms is termed as money flow e.g. A patient taking services of the doctor by paying rupees 500.
Hence real flow and money flow is a chain process wherein one leads to another.
Regards,