The Moon illusion is an optical illusion which causes the Moon to appear larger near the horizon than it does higher up in the sky. It has been known since ancient times and recorded by various cultures. The explanation of this illusion is still debated.
The Liver is a chemical factory is secretes an enormous number of chemicals. We need you to be more specific to be able to help you with a particular liver secretion. Edit
The endocrine system controls the body activities by producing chemical substances called hormones are chemical messengers, secreted by ductless gland known as endocrine glands. Exocrine gland secrete their products into ducts or channels, that carry them either to the outside of the body or into body cavities.