Biology is the natural science that studies life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution.

The primary source of dye, historically, has been nature, with the dyes being extracted from animals or plants.

CHEMISTRY is  a science that deals with the composition, structure, and properties of substances and with the transformations that they undergo

Economics is a social science concerned with the production, distribution, and consumption of goods and services. It studies how individuals, businesses, governments, and nations make choices on allocating resources to satisfy their wants and needs, trying to determine how these groups should organize and coordinate efforts to achieve maximum output.